CVE-2026-57191

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.59% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 48.1% of scored records. A rank, not a probability.

NVD base score

8.2 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-28.

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

2026-10-27 21:32Z1 DAY AGO

Last updated

2026-10-27 21:32Z1 DAY AGO

Reserved

2026-06-24

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

d8009e69d9de8d5a4664add5867863df0a50b456c5c5bd67972674d1dd1981af

• github.comhttps://github.com/asterisk/asterisk/security/advisories/GHSA-589g-qgf8-m6mxx_refsource_CONFIRM
• github.comhttps://github.com/asterisk/asterisk/commit/0e89514084490070c5ecee419ec5ee37b7c49528x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/commit/647b35c3cfd4a2cc3b1fb7560b085feba5c24b4bx_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/commit/7a1ffcdf38cc76d1c4eae51651667f3fd4548ab0x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/commit/b4be3bd67ce4ac35b94fbfa860cdd9e1c906610bx_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/commit/b5281828dad7d44658439ba6393fe6be3328a4bdx_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/commit/dca516f6d895e8867d48fa56b6ce7f05b6f7457ax_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/commit/ee1b66a5e40733ba0b9fad7fc4d032cabbe1dd75x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/releases/tag/20.20.1x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/releases/tag/21.12.3x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/releases/tag/22.10.1x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/releases/tag/23.4.1x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3x_refsource_MISC
• github.comhttps://github.com/asterisk/asterisk/tree/24.0.0-pre1x_refsource_MISC