CVE-2025-4877

mediumpriority · track · 0EPSS 0.002 · 10 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.20% (10th) EPSS
CVSS 4.5 · medium
Is it mine?
96 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

There's a vulnerability in the libssh package where when a libssh consumer passes in an unexpectedly large input buffer to ssh_get_fingerprint_hash() function. In such cases the bin_to_base64() function can experience an integer overflow leading to a memory under allocation, when that happens it's possible that the program perform out of bounds write leading to a heap corruption. This issue affects only 32-bits builds of libssh.

01

cvss

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

4.5
010

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

v3.14.5mediumAV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU
v3.14.5mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · ENISA EU
v3.14.5mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · secalert@redhat.com USexploitability 1 · impact 3.4
v3.14.1mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/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.

04

affected products (96)

Products and version ranges known to be affected.

showing 20 of 96
05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2025-1423libssh: Mehrere SchwachstellenDeutsch2025-06-29csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in libssh ausnutzen, um einen Denial of Service Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und potentiell weitere nicht spezifizierte Auswirkungen zu verursachen.

  • WID-SEC-W-2026-1118Dell PowerProtect Data Domain OS: Mehrere SchwachstellenDeutsch2026-04-14csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell PowerProtect Data Domain OS ausnutzen, um beliebigen Code auszuführen – sogar mit Root-Rechten –, um erweiterte Rechte zu erlangen – einschließlich Administratorrechte –, um Sicherheitsmaßnahmen zu umgehen, um Daten zu manipulieren, um vertrauliche Informationen offenzulegen oder um andere, nicht näher spezifizierte Angriffe durchzuführen.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

published 2025-08-20modified 2026-09-23
08

references (16)

External citations — patches, advisories, analysis.

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