CVE-2026-107660

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 2.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/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

Analyzed. NVD last modified this record on 2026-10-14.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2026-10-08 15:28Z21 DAYS AGO

Last updated

2026-10-08 17:25Z20 DAYS AGO

Reserved

2026-10-08

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

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

Weaknesses

• CWE-297Improper Validation of Certificate with Host MismatchVariant
• CWE-295Improper Certificate ValidationBase

Data version

5.2

Document digest

2129314090c6421967384fd63c90d5300a72a7b57de9d1d25ad4989caa1064cc

• code.ffmpeg.orghttps://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24383patch
• code.ffmpeg.orghttps://code.ffmpeg.org/FFmpeg/FFmpeg/commit/57a2e704b4a6eda5d061b45aacde6b19c026bfc0patch
• code.ffmpeg.orghttps://code.ffmpeg.org/FFmpeg/FFmpeg/commit/d377212904a19fc740d721cbda0ba58fa3805a29patch
• code.ffmpeg.orghttps://code.ffmpeg.org/FFmpeg/FFmpeg/commit/0cd2a70eacd510c2efed48b9fc177c7cb2bc549fpatch
• github.comhttps://github.com/FFmpeg/FFmpeg/blob/n9.0.1/libavformat/tls_mbedtls.c#L676-L681technical-description
• ffmpeg.orghttps://ffmpeg.org/product
• www.vulncheck.comVulnCheck Advisory: FFmpeg before 8.1.3 and 9.x before 9.0.2 mbedTLS Hostname Verification Bypass for IP Hostshttps://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-and-9-x-before-9.0.2-mbedtls-hostname-verification-bypass-for-ip-hoststhird-party-advisory