CVE-2021-33938
CVE-2021-33938 is a high-severity vulnerability in Opensuse Libsolv with a CVSS 3.x base score of 7.5. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (70th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Opensuse Libsolv
- Published:
- Last modified:
Description
Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17 allows attackers to cause a Denial of Service.
Frequently asked questions
- What is CVE-2021-33938?
- Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17 allows attackers to cause a Denial of Service.
- How severe is CVE-2021-33938?
- CVE-2021-33938 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2021-33938 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-33938?
- CVE-2021-33938 affects Opensuse Libsolv. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-33938?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-33938 published?
- CVE-2021-33938 was published on 2021-09-02 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:*
More vulnerabilities in Opensuse Libsolv
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- CVE-2021-33928 — High (CVSS 7.5): Buffer overflow vulnerability in function pool_installable in src/repo.h in libsolv before 0.7.17 allows attackers to…
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- CVE-2026-9149 — Medium (CVSS 6.5): A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted…
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