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Vulnerabilities

Vulnerability · CVE-2025-40833

The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests.

Published May 12, 2026 · catalog updated Aug 11, 2026 · The affected devices contain

Check if you run it

No confirmed exploitation is on record for CVE-2025-40833. EPSS is 0.32%. Act only if a listed version of The affected devices contain is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The affected devices contain).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.32%
Remediation
Not established
Affected products
See sources for product scope

The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2025-40833

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-40833. EPSS is 0.32%. Act only if a listed version of The affected devices contain is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-476: NULL Pointer Dereference. EPSS 0.32%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2026 · NIST NVD

    Detected

    The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.

  2. Aug 11, 2026 · NIST NVD

    Updated

    The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.

Sources

  • CVE.orgVulnerability recordCVE-2025-40833

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-40833

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2025-40833

    The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.