CVE-2022-2639

highpriority · track · 41EPSS 0.009 · 60 %ileexploit · PoCDEEUNLRUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
3 exploits · PoC
Likely / severe?
0.92% (60th) EPSS
CVSS 7.8 · high
Is it mine?
118 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

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.

7.8
010

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

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.17.4highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-681USprimaryCWE-191USCWE-191USCWE-191USCWE-192USCWE-192USCWE-681USCWE-681USCWE-787US
04

exploits (3)

Public proof-of-concept and weaponised exploit code.

05

affected products (118)

Products and version ranges known to be affected.

showing 20 of 118
06

advisories (6)

Vendor and ecosystem advisories describing this.

  • NCSC-2025-0382Kwetsbaarheden verholpen in Siemens productenNL2025-12-09csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als Building X, COMOS, Energy Services, Gridscale X, NX, RUGGEDCOM, SICAM, SIMATIC, SINEC, SINEMA, SIPLUS en Solid Edge.

  • SSA-202008SSA-202008: Multiple Vulnerabilities in Ruggedcom Rox Before V2.17.02025-12-09csaf · siemens_psirtDE

    Ruggedcom ROX familly contain multiple vulnerabilities before V2.17.0 Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • SSA-419740SSA-419740: Multiple Third-Party Component Vulnerabilities in RUGGEDCOM and SCALANCE Products before V7.22023-03-14csaf · siemens_psirtDE

    Multiple third-party component vulnerabilities were reported for the Busybox applet, the Linux Kernel, OpenSSL, OpenVPN and various other components used by the RUGGEDCOM and SCALANCE products. The vulnerabilities range from improper neutralization of special elements to improper handling of commands under certain circumstances, that could lead to code injection and denial of service. Siemens has released updates for the affected products and recommends to update to the latest versions.

  • WID-SEC-W-2022-1293Linux Kernel: Schwachstelle ermöglicht Denial of ServiceDeutsch2022-09-05csaf · cert_bundDE

    Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen oder möglicherweise seine Privilegien zu erweitern.

  • WID-SEC-W-2024-0794Dell ECS: Mehrere SchwachstellenDeutsch2024-04-04csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.

  • ICSA-23-075-01Siemens SCALANCE, RUGGEDCOM Third-Party2023-03-14icsa · cisa_csaf_otUS

    Multiple third-party component vulnerabilities were reported for the Busybox applet, the Linux Kernel, OpenSSL, OpenVPN and various other components used by the RUGGEDCOM and SCALANCE products. The vulnerabilities range from improper neutralization of special elements to improper handling of commands under certain circumstances, that could lead to code injection and denial of service. Siemens has released updates for the affected products and recommends to update to the latest versions.

07

also known as (4)

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 2022-09-01modified 2026-06-17
10

references (27)

External citations — patches, advisories, analysis.

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