7.8
HIGH
CVE-2021-1921
Snapdragon Memory Corruption via Hypervisor Unmap Operations
Description

Possible memory corruption due to Improper handling of hypervisor unmap operations for concurrent memory operations in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

INFO

Published Date :

Nov. 12, 2021, 7:15 a.m.

Last Modified :

Nov. 21, 2024, 5:45 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-1921 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Qualcomm aqt1000_firmware
2 Qualcomm qca6390_firmware
3 Qualcomm qca6391_firmware
4 Qualcomm qca6420_firmware
5 Qualcomm qca6426_firmware
6 Qualcomm qca6430_firmware
7 Qualcomm qca6436_firmware
8 Qualcomm qca6574au_firmware
9 Qualcomm sa6155p_firmware
10 Qualcomm sa8195p_firmware
11 Qualcomm sd855_firmware
12 Qualcomm sd865_5g_firmware
13 Qualcomm sd870_firmware
14 Qualcomm sd888_5g_firmware
15 Qualcomm sdx55m_firmware
16 Qualcomm sdxr2_5g_firmware
17 Qualcomm wcd9341_firmware
18 Qualcomm wcd9380_firmware
19 Qualcomm wcd9385_firmware
20 Qualcomm wcn3980_firmware
21 Qualcomm wcn3998_firmware
22 Qualcomm wcn6850_firmware
23 Qualcomm wcn6851_firmware
24 Qualcomm wcn6855_firmware
25 Qualcomm wcn6856_firmware
26 Qualcomm wcn7850_firmware
27 Qualcomm wcn7851_firmware
28 Qualcomm wsa8810_firmware
29 Qualcomm wsa8815_firmware
30 Qualcomm wsa8830_firmware
31 Qualcomm wsa8835_firmware
32 Qualcomm wcn6750_firmware
33 Qualcomm qca6421_firmware
34 Qualcomm qca6431_firmware
35 Qualcomm qca6595_firmware
36 Qualcomm qcm6490_firmware
37 Qualcomm qcs6490_firmware
38 Qualcomm qrb5165n_firmware
39 Qualcomm qsm8350_firmware
40 Qualcomm qrb5165_firmware
41 Qualcomm sd_8cx_firmware
42 Qualcomm sdx55_firmware
43 Qualcomm wcd9340_firmware
44 Qualcomm wcd9360_firmware
45 Qualcomm wcd9370_firmware
46 Qualcomm wcd9375_firmware
47 Qualcomm wcn3950_firmware
48 Qualcomm wcn3990_firmware
49 Qualcomm wcn6740_firmware
50 Qualcomm sd778g_firmware
51 Qualcomm sd780g_firmware
52 Qualcomm sd675_firmware
53 Qualcomm sdx24_firmware
54 Qualcomm sdm830_firmware
55 Qualcomm sm7325_firmware
56 Qualcomm sd_8c_firmware
57 Qualcomm whs9410_firmware
58 Qualcomm aqt1000
59 Qualcomm qca6390
60 Qualcomm qca6391
61 Qualcomm qca6420
62 Qualcomm qca6421
63 Qualcomm qca6426
64 Qualcomm qca6430
65 Qualcomm qca6431
66 Qualcomm qca6436
67 Qualcomm qca6574au
68 Qualcomm qca6595
69 Qualcomm sa6155p
70 Qualcomm sa8195p
71 Qualcomm sd_8c
72 Qualcomm sd_8cx
73 Qualcomm sd675
74 Qualcomm sd855
75 Qualcomm sd865_5g
76 Qualcomm sd888_5g
77 Qualcomm sdm830
78 Qualcomm sdx55
79 Qualcomm sdx55m
80 Qualcomm sdxr2_5g
81 Qualcomm wcd9340
82 Qualcomm wcd9341
83 Qualcomm wcd9360
84 Qualcomm wcd9370
85 Qualcomm wcd9375
86 Qualcomm wcd9380
87 Qualcomm wcd9385
88 Qualcomm wcn3950
89 Qualcomm wcn3980
90 Qualcomm wcn3990
91 Qualcomm wcn3998
92 Qualcomm wcn6740
93 Qualcomm wcn6750
94 Qualcomm wcn6850
95 Qualcomm wcn6851
96 Qualcomm wcn6856
97 Qualcomm whs9410
98 Qualcomm wsa8810
99 Qualcomm wsa8815
100 Qualcomm wsa8830
101 Qualcomm wsa8835
102 Qualcomm sdx24
103 Qualcomm wcn6855
104 Qualcomm wcn7850
105 Qualcomm wcn7851
106 Qualcomm qcs6490
107 Qualcomm qcm6490
108 Qualcomm qrb5165n
109 Qualcomm qsm8350
110 Qualcomm qrb5165
111 Qualcomm sm7325
112 Qualcomm sd870
113 Qualcomm sd778g
114 Qualcomm sd780g
: Total Affected Vendor : 1 | Products : 114
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-1921.

URL Resource
https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin Vendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-1921 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-1921 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Nov. 15, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin No Types Assigned https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin Vendor Advisory
    Added CWE NIST CWE-367
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:aqt1000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6390:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6391:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6420:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6421_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6421:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6426_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6426:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6430:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6431_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6431:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6436_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6436:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6574au:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6595_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6595:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcm6490_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcm6490:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcs6490_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcs6490:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qrb5165_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qrb5165:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qrb5165n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qrb5165n:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qsm8350_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qsm8350:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa6155p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8195p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd_8c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd_8c:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd_8cx_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd_8cx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd675_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd675:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd778g_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd778g:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd780g_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd780g:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd855_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd855:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd865_5g_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd865_5g:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd870_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd870:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd888_5g_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd888_5g:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sdm830_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sdm830:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sdx24_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sdx24:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sdx55:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sdx55m_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sdx55m:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sdxr2_5g_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sdxr2_5g:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sm7325_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sm7325:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9340_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9340:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9341_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9341:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9360_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9360:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9370:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9375_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9375:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9380:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9385:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3950:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3980_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3980:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3990_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3990:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3998_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3998:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn6740_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn6740:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn6750_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn6750:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn6850_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn6850:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn6851_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn6851:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn6855_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn6855:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn6856_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn6856:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn7850_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn7850:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn7851_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn7851:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:whs9410_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:whs9410:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8810:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8815_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8815:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8830_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8830:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8835_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8835:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-1921 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-1921 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.10280

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: