7.1
HIGH
CVE-2021-26408
AMD SEV Legacy Elliptic Curve Point Validation Vulnerability ( Confidentiality Integrity)
Description

Insufficient validation of elliptic curve points in SEV-legacy firmware may compromise SEV-legacy guest migration potentially resulting in loss of guest's integrity or confidentiality.

INFO

Published Date :

May 10, 2022, 7:15 p.m.

Last Modified :

Nov. 21, 2024, 5:56 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.2

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-26408 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 Amd epyc_7f72_firmware
2 Amd epyc_7f52_firmware
3 Amd epyc_7f32_firmware
4 Amd epyc_7742_firmware
5 Amd epyc_7702p_firmware
6 Amd epyc_7702_firmware
7 Amd epyc_7662_firmware
8 Amd epyc_7642_firmware
9 Amd epyc_7552_firmware
10 Amd epyc_7542_firmware
11 Amd epyc_7532_firmware
12 Amd epyc_7502p_firmware
13 Amd epyc_7502_firmware
14 Amd epyc_7452_firmware
15 Amd epyc_7402_firmware
16 Amd epyc_7402p_firmware
17 Amd epyc_7352_firmware
18 Amd epyc_7302p_firmware
19 Amd epyc_7302_firmware
20 Amd epyc_7282_firmware
21 Amd epyc_7272_firmware
22 Amd epyc_7262_firmware
23 Amd epyc_7252_firmware
24 Amd epyc_7232p_firmware
25 Amd epyc_7002_firmware
26 Amd epyc_7001_firmware
27 Amd epyc_7251_firmware
28 Amd epyc_7281_firmware
29 Amd epyc_7301_firmware
30 Amd epyc_7351_firmware
31 Amd epyc_7401_firmware
32 Amd epyc_7401p_firmware
33 Amd epyc_7451_firmware
34 Amd epyc_7501_firmware
35 Amd epyc_7551_firmware
36 Amd epyc_7551p_firmware
37 Amd epyc_7601_firmware
38 Amd epyc_7351p_firmware
39 Amd epyc_7232p
40 Amd epyc_7251
41 Amd epyc_7252
42 Amd epyc_7262
43 Amd epyc_7272
44 Amd epyc_7281
45 Amd epyc_7282
46 Amd epyc_7301
47 Amd epyc_7302
48 Amd epyc_7302p
49 Amd epyc_7351
50 Amd epyc_7351p
51 Amd epyc_7352
52 Amd epyc_7401
53 Amd epyc_7401p
54 Amd epyc_7402
55 Amd epyc_7402p
56 Amd epyc_7451
57 Amd epyc_7452
58 Amd epyc_7501
59 Amd epyc_7502
60 Amd epyc_7502p
61 Amd epyc_7532
62 Amd epyc_7542
63 Amd epyc_7551
64 Amd epyc_7551p
65 Amd epyc_7552
66 Amd epyc_7601
67 Amd epyc_7642
68 Amd epyc_7662
69 Amd epyc_7702
70 Amd epyc_7702p
71 Amd epyc_7742
72 Amd epyc_7f32
73 Amd epyc_7f52
74 Amd epyc_7f72
75 Amd epyc_7001
76 Amd epyc_7002
: Total Affected Vendor : 1 | Products : 76
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-2021-26408.

URL Resource
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021 Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021 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-2021-26408 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-26408 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.amd.com/en/corporate/product-security/bulletin/amd-sb-1021
  • CVE Modified by [email protected]

    May. 14, 2024

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

    May. 17, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021 No Types Assigned https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021 Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7002_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7002:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7001_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7001:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7232p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7252_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7252:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7262_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7262:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7272:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7282:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7302:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7302p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7302p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7352_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7352:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7402_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7402:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7402p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7402p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7452_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7452:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7502_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7502:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7502p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7532_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7532:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7542:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7552_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7552:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7642:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7662_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7662:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7702_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7702:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7702p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7702p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7742:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7f32_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7f32:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7f52_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7f52:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7f72_firmware:*:*:*:*:*:*:*:* versions up to (excluding) romepi-sp3_1.0.0.c OR cpe:2.3:h:amd:epyc_7f72:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7251_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7251:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7281_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7281:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7301_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7301:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7351_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7351:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7351p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7351p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7401_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7401:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7401p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7401p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7451_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7451:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7501_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7501:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7551_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7551:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7551p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7551p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7601_firmware:*:*:*:*:*:*:*:* versions up to (excluding) naplespi-sp3_1.0.0.g OR cpe:2.3:h:amd:epyc_7601:-:*:*:*:*:*:*:*
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-2021-26408 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-2021-26408 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

0.10321

percentile

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