CVE-2026-88647

mediumpriority · track · 0EPSS 0.002 · 11 %ileDEFR
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.21% (11th) EPSS
CVSS 6.5 · medium
Is it mine?
1 products
Check your exposure
Who says so?
2 sources
cert_bund · certfr

EPSS · scored 2026-10-28

A hostname verification bypass in GnuTLS v3.8.13 allows attackers to circumvent the Common Name fallback mechanism and eavesdrop on communications via a crafted certificate.

01

cvss

Technical severity, 0–10. One row per scoring source.

6.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:Nsecondaryexploitability 2.2 · impact 4.2
v3.16mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-297US
04

affected products (1)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-3843GnuTLS: Mehrere SchwachstellenDeutsch2026-10-08csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GnuTLS ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten offenzulegen oder zu manipulieren oder einen Denial-of-Service-Zustand auszulösen.

  • CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
06

sources

Which sources assert this record, and when.

cert_bundcertfrNVDCVE.orgMITRE
published 2026-10-08modified 2026-10-19
07

references (2) nvd

External citations — patches, advisories, analysis.

scry

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