CVE-2026-43190

highpriority · track · 0EPSS 0.005 · 40 %ileDEEUNLRUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.46% (40th) EPSS
CVSS 8.2 · high
Is it mine?
91 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_tcpmss: check remaining length before reading optlen Quoting reporter: In net/netfilter/xt_tcpmss.c (lines 53-68), the TCP option parser reads op[i+1] directly without validating the remaining option length. If the last byte of the option field is not EOL/NOP (0/1), the code attempts to index op[i+1]. In the case where i + 1 == optlen, this causes an out-of-bounds read, accessing memory past the optlen boundary (either reading beyond the stack buffer _opt or the following payload).

01

cvss

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

8.2
010

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

v3.18.2highAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Hsecondary · ENISA EU
v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Hsecondaryexploitability 3.9 · impact 4.2
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Hsecondary · NCSC-NL NL
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-125USprimaryCWE-125USCWE-130USCWE-130US
04

affected products (91)

Products and version ranges known to be affected.

showing 20 of 91
05

advisories (3)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0431Kwetsbaarheden verholpen in IBM DataPower Gateway en onderliggende componentenNL2026-10-16csaf · ncsc_nlNL

    IBM heeft meerdere beveiligingsproblemen opgelost in DataPower Gateway versies 10.5 tot 11.0 en een veelvoud aan onderliggende subcomponenten.

  • WID-SEC-W-2026-1405Linux Kernel: Mehrere SchwachstellenDeutsch2026-05-06csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht spezifizierte Angriffe durchzuführen, möglicherweise Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

  • WID-SEC-W-2026-3623IBM DataPower Gateway: Mehrere SchwachstellenDeutsch2026-09-28csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in IBM DataPower Gateway ausnutzen, um beliebigen Programmcode auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen, einen Denial-of-Service-Zustand auszulösen oder Cross-Site-Scripting-Angriffe durchzuführen.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundncsc_nlNVDCVE.orgMITRE
published 2026-05-06modified 2026-10-19
09

references (18)

External citations — patches, advisories, analysis.

scry

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