Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2026-75501 on 15 September 2026, and it carries the Rejected state at CVE.org and NVD. It must not be treated as a live finding. Its pre-withdrawal severity, score and exploitability are withheld below; the record itself is kept because withdrawals are reversible and because the reject reason is the correction worth publishing.
CVE-2026-75501
CVE-2026-75501
Description
Rejected reason: Vendor could not replicate the vul, and reporter is unavailable to comment.
INFO
Published Date :
Aug. 21, 2026, 3:16 p.m.
Last Modified :
Sept. 15, 2026, 8:17 p.m.
Remotely Exploit :
—
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-75501
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.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
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-2026-75501 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-75501 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 Rejected by [email protected]
Sep. 15, 2026
Action Type Old Value New Value -
CVE Modified by [email protected]
Sep. 15, 2026
Action Type Old Value New Value Changed Description A vulnerability in the Calix EXOS firmware for the GS7 XGS (GS5239XG) residential router allows unauthenticated remote attackers to modify NAT port‑forwarding rules via the UPnP WANIPConnection service. The device exposes the MiniUPnPd control endpoint on the WAN interface on TCP port 5000 without access controls. A remote attacker can send crafted SOAP requests to add, delete, or enumerate port mappings, or to query the external IP address, without authentication. Successful exploitation may enable bypass of the firewall/NAT boundary and exposure of internal LAN services to the public internet. Rejected reason: Vendor could not replicate the vul, and reporter is unavailable to comment. Removed CVSS V3.1 CISA-ADP: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Removed CVSS V3.1 nvd-ai-agent-0.3.0-gemma-4-31B-it: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N Removed CWE CISA-ADP: CWE-306 Removed CWE nvd-ai-agent-0.3.0-gemma-4-31B-it: CWE-306 Removed CPE Configuration AND OR *cpe:2.3:o:calix:gs5239xg_firmware:*:*:*:*:*:*:*:* versions up to (including) 6.6.47 OR cpe:2.3:h:calix:gs5239xg:-:*:*:*:*:*:*:* Added Affected Affected value removed. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/75xxx/CVE-2026-75501.json">CVE-2026-75501</a> Removed Reference CERT/CC: https://drkq.github.io/security-research/calix-vu756733/ Removed Reference CERT/CC: https://kb.cert.org/vuls/id/756733 Removed Reference CISA-ADP: https://drkq.github.io/security-research/calix-vu756733/ Removed Reference CVE: https://www.kb.cert.org/vuls/id/756733 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://drkq.github.io/security-research/calix-vu756733/ Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://kb.cert.org/vuls/id/756733 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.kb.cert.org/vuls/id/756733 Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://drkq.github.io/security-research/calix-vu756733/ Types: Exploit, Mitigation, Third Party Advisory Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://kb.cert.org/vuls/id/756733 Types: Exploit, Mitigation, Third Party Advisory, VDB Entry Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.kb.cert.org/vuls/id/756733 Types: Exploit, Mitigation, Third Party Advisory, VDB Entry Removed SSVC {'id': 'CVE-2026-75501', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-25T19:26:19.786562Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Added CWE CWE-306 Added Reference https://drkq.github.io/security-research/calix-vu756733/ Added SSVC {'id': 'CVE-2026-75501', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-25T19:26:19.786562Z'} -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Aug. 21, 2026
Action Type Old Value New Value Added Reference https://www.kb.cert.org/vuls/id/756733 -
New CVE Received by [email protected]
Aug. 21, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Calix', 'product': 'GS7 XGS (GS5239XG)', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': 'Firmware EXOS/6.6.47'}]}] Added Description A vulnerability in the Calix EXOS firmware for the GS7 XGS (GS5239XG) residential router allows unauthenticated remote attackers to modify NAT port‑forwarding rules via the UPnP WANIPConnection service. The device exposes the MiniUPnPd control endpoint on the WAN interface on TCP port 5000 without access controls. A remote attacker can send crafted SOAP requests to add, delete, or enumerate port mappings, or to query the external IP address, without authentication. Successful exploitation may enable bypass of the firewall/NAT boundary and exposure of internal LAN services to the public internet. Added Reference https://drkq.github.io/security-research/calix-vu756733/ Added Reference https://kb.cert.org/vuls/id/756733