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Public proof of conceptFix available

CVE-2025-62875

A public proof of concept exists; no exploitation attested.

  • Published2025-11-20
  • WeaknessCWE-754

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in OpenSMTPD allows local users to crash OpenSMTPD. This issue affects openSUSE Tumbleweed: from ? before 7.8.0p0-1.1.

Timeline

dates in UTC
  1. 2025-11-2016:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-62875?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-62875?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Opensmtpd
BranchAffectedFixed in
7.7= 7.7.0no fix published
Opensuse tumbleweed
BranchAffectedFixed in
7.8< 7.8.0p0-1.17.8.0p0-1.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As suse, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • SUSE openSUSE Tumbleweedother versions: not affected

    package OpenSMTPD

    Affected
    • ≥ ?, < 7.8.0p0-1.1fixed in 7.8.0p0-1.1custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-11-20

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • opensmtpdUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • opensmtpdUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • opensmtpdUbuntu:26.10all versions · no fixed version listed
  • opensmtpdUbuntu:26.04:LTSall versions · no fixed version listed
  • opensmtpdUbuntu:25.10all versions · no fixed version listed
  • opensmtpdUbuntu:24.04:LTSall versions · no fixed version listed
  • opensmtpdUbuntu:22.04:LTSall versions · no fixed version listed
  • opensmtpdUbuntu:20.04:LTSall versions · no fixed version listed

5 more package ranges on OSV.dev

Vendor advisories

  • CVE-2025-62875 Red Hat Product Security

    opensmtpd: Local DoS in OpenSMTPD via UNIX domain socket smtpd.sock

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 4.0 vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2025-11-20
Last Modified
2026-10-18
NVD status
Analyzed
GitHub Advisory
GHSA-px28-qwg7-83x2

Frequently asked questions

What is CVE-2025-62875?

An Improper Check for Unusual or Exceptional Conditions vulnerability in OpenSMTPD allows local users to crash OpenSMTPD. This issue affects openSUSE Tumbleweed: from ? before 7.8.0p0-1.1.

Is CVE-2025-62875 actively exploited?

A proof-of-concept exploit exists for CVE-2025-62875, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-62875?

CVE-2025-62875 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

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Sources for this record