CVE-2024-36902

Local system crash via unchecked IPv6 interface pointer

Published May 30, 2024 · Updated May 12, 2026

A NULL pointer dereference in Linux IPv6 routing allows local users to crash affected systems through an SCTP connection attempt. In fib6_rule_action, ip6_dst_idev can return NULL, but the result is dereferenced without the required check while resolving the IPv6 route. Low-privileged local access is sufficient; successful exploitation raises a general-protection fault and interrupts the system without reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A NULL pointer dereference in Linux IPv6 routing allows local users to crash affected systems through an SCTP connection attempt. In fib6_rule_action, ip6_dst_idev can return NULL, but the result is dereferenced without the required check while resolving the IPv6 route. Low-privileged local access is sufficient; successful exploitation raises a general-protection fault and interrupts the system without reported data disclosure or modification.

The record

CVE
CVE-2024-36902
Published
May 30, 2024
Updated
May 12, 2026
Vendor
Siemens
Product
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linuxversion=2.6.26; version=5e5f3f0f801321078c897a5de0b4b4304f234da0 <1876881c9a49613b5249fb400cbf53412d90cb09; version=5e5f3f0f801321078c897a5de0b4b4304f234da0 <35297fc68de36826087e976f86a5b1f94fd0bf95; version=5e5f3f0f801321078c897a5de0b4b4304f234da0 <4a5a573387da6a6b23a4cc62147453ff1bc32afa; version=5e5f3f0f801321078c897a5de0b4b4304f234da0 <674c951ab8a23f7aff9b4c3f2f865901bc76a290; version=5e5f3f0f801321078c897a5de0b4b4304f234da0 <7e3242c139c38e60844638e394c2877b16b396b0; version=5e5f3f0f801321078c897a5de0b4b4304f234da0 <8745a8d74ba17dafe72b6ab461fa6c007d879747; version=5e5f3f0f801321078c897a5de0b4b4304f234da0 <d101291b2681e5ab938554e3e323f7a7ee33e3aa; version=5e5f3f0f801321078c897a5de0b4b4304f234da0 <ddec23f206a944c73bcc2724358b85388837daff
Siemens · SCALANCE XCM/XRM/XCH/XRH-300 familyversion=0 <V3.1
Siemens · RUGGEDCOM RST2428Pversion=0 <V3.1

Published CVSS scores

5.5Siemens ProductCERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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