CVE-2026-88830

highpriority · track · 30EPSS 0.004 · 29 %ileDEUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.35% (29th) EPSS
CVSS 7.5 · high
Is it mine?
3 products
Check your exposure
Who says so?
1 sources
cert_bund

EPSS · scored 2026-10-27

A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.

01

cvss

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

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · secalert@redhat.com USexploitability 3.9 · impact 3.6
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-131US
04

affected products (3)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-3557BusyBox: Mehrere SchwachstellenDeutsch2026-09-23csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in BusyBox ausnutzen, um möglicherweise beliebigen Code auszuführen, Speicher zu beschädigen, sensible Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen oder Denial-of-Service-Zustände zu verursachen.

06

sources

Which sources assert this record, and when.

cert_bundNVDCVE.orgMITRE
published 2026-09-23modified 2026-09-23
07

references (2) nvd

External citations — patches, advisories, analysis.

scry

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