CVE-2025-62875
CVE-2025-62875 is a medium-severity vulnerability in Opensmtpd with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-754.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v4: 6.9
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-198303
- Weakness: CWE-754
- Affected product: Opensmtpd
- Published:
- Last modified:
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.
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.
- How severe is CVE-2025-62875?
- CVE-2025-62875 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-62875 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-62875?
- CVE-2025-62875 primarily affects Opensmtpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-62875?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-62875 have an EU (EUVD) identifier?
- Yes. CVE-2025-62875 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198303.
- When was CVE-2025-62875 published?
- CVE-2025-62875 was published on 2025-11-20 and last updated on 2026-06-17.
References
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-62875
- https://security.opensuse.org/2025/10/31/opensmtpd-local-DoS.html
- http://www.openwall.com/lists/oss-security/2025/10/31/3
- https://security.opensuse.org/2025/10/31/opensmtpd-local-DoS.html#reproducer
Affected products (2)
- cpe:2.3:a:opensmtpd:opensmtpd:7.7.0:p0:*:*:*:*:*:*
- cpe:2.3:a:opensuse:tumbleweed:*:*:*:*:*:*:*:*
More vulnerabilities in Opensmtpd
- CVE-2020-8794 — Critical (CVSS 9.8): OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for…
- CVE-2023-29323 — High (CVSS 7.8): ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and OpenSMTPD Portable before…
- CVE-2020-35680 — High (CVSS 7.5): smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of…
- CVE-2020-35679 — High (CVSS 7.5): smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very…
- CVE-2020-8793 — Medium (CVSS 4.7): OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a…
All CVEs affecting Opensmtpd →
Other CWE-754 (Improper Check for Unusual or Exceptional Conditions) vulnerabilities
- CVE-2026-24054 — Critical (CVSS 10.0): Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs)…
- CVE-2021-0211 — Critical (CVSS 10.0): An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing…
- CVE-2026-8091 — Critical (CVSS 9.8): Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150,…
- CVE-2024-52316 — Critical (CVSS 9.8): Unchecked Error Condition vulnerability in Apache Tomcat. If Tomcat is configured to use a custom Jakarta…
- CVE-2024-7826 — Critical (CVSS 9.8): Improper Check for Unusual or Exceptional Conditions vulnerability in Webroot SecureAnywhere - Web Shield on Windows,…
- CVE-2023-37303 — Critical (CVSS 9.8): An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In certain situations, an attempt to…
Browse all CWE-754 (Improper Check for Unusual or Exceptional Conditions) vulnerabilities →