CVE-2022-3437

mediumpriority · track · 27EPSS 0.039 · 90 %ileDEEUNLRUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
3.86% (90th) EPSS
CVSS 6.5 · medium
Is it mine?
64 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the application, possibly resulting in a denial of service (DoS) attack.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

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:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.15.9mediumAV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:Lsecondary · FSTEC (BDU) RU
v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU
v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Lsecondaryexploitability 2.8 · impact 1.4
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · NCSC-NL NL
03

ssvc

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

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USCWE-122USCWE-122USCWE-122USCWE-122US
05

affected products (64)

Products and version ranges known to be affected.

showing 20 of 64
06

advisories (6)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0371Kwetsbaarheden verholpen in Apple macOS en Samba door Apple en SambaNL2026-09-15csaf · ncsc_nlNL

    Apple heeft meerdere kwetsbaarheden verholpen in macOS (Specifiek voor Golden Gate 27, Sequoia 15.8, Tahoe 26.7).

  • SSA-806742SSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.42024-02-13csaf · siemens_psirtDE

    SCALANCE XCM-/XRM-300 before V2.4 is affected by multiple vulnerabilities. Siemens has released an update for SCALANCE X-300 and recommends to update to the latest version.

  • WID-SEC-W-2022-1847Samba: Mehrere SchwachstellenDeutsch2022-10-24csaf · cert_bundDE

    Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Samba ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen oder Sicherheitsvorkehrungen zu umgehen.

  • WID-SEC-W-2022-2372genua genugate: Mehrere SchwachstellenDeutsch2022-12-19csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann einige der mehreren Schwachstellen in Komponenten von Drittanbietern ausnutzen, die von genua genugate verwendet werden, um Informationen offenzulegen und potentiell weitere, unbekannte Auswirkungen zu erzielen.

  • WID-SEC-W-2026-3352Apple iOS, iPadOS, macOS Tahoe, macOS Golden Gate, macOS Sequoia und Safari: Mehrere SchwachstellenDeutsch2026-09-14csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Apple iOS, iPadOS, macOS Tahoe, macOS Golden Gate, macOS Sequoia and Safari ausnutzen,, um beliebigen Code mit Root- oder Kernel-Rechten auszuführen, Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, auf Daten zuzugreifen, diese zu manipulieren oder offenzulegen oder Denial-of-Service-Zustände herbeizuführen.

  • ICSA-24-046-11Siemens SCALANCE XCM-/XRM-3002024-02-13icsa · cisa_csaf_otUS

    SCALANCE XCM-/XRM-300 before V2.4 is affected by multiple vulnerabilities. Siemens has released an update for SCALANCE X-300 and recommends to update to the latest version.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otncsc_nlsiemens_psirtNVDCVE.orgMITRE
published 2023-01-12modified 2026-06-17
09

references (35)

External citations — patches, advisories, analysis.

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