CVE-2026-81508

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 11.4% of scored records. A rank, not a probability.

NVD base score

4.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

NVD analysis status

Deferred. NVD last modified this record on 2026-09-25.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-24 17:52Z1 MO AGO

Last updated

2026-09-24 18:07Z1 MO AGO

Reserved

2026-08-26

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 4.3)

CNA CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

5cbe0c5e1c8fdb9019367174f26bbb2a9fc66b53089b78ec7042c1335db2efbc

• github.comhttps://github.com/espressif/esp-idf/security/advisories/GHSA-xcpr-5mqp-9qvvx_refsource_CONFIRM
• github.comhttps://github.com/espressif/esp-idf/commit/0d118139ff8b7aa87b656c2f4a6421ecaa1f5939x_refsource_MISC
• github.comhttps://github.com/espressif/esp-idf/commit/6cb20db4dfeee81314d0c55acb82f3f0e7679abex_refsource_MISC
• github.comhttps://github.com/espressif/esp-idf/commit/85d56bcd266117e0fe6a6b75511c8e122fda29adx_refsource_MISC
• github.comhttps://github.com/espressif/esp-idf/commit/ca55d63de82e41e2c672bfd2b707fc80911f30cex_refsource_MISC