CVE-2023-33981
CVE-2023-33981 is a medium-severity vulnerability in Briarproject Briar with a CVSS 3.x base score of 6.5. 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-354.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (25th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-354
- Affected product: Briarproject Briar
- Published:
- Last modified:
Description
Briar before 1.4.22 allows attackers to spoof other users' messages in a blog, forum, or private group, but each spoofed message would need to be an exact duplicate of a legitimate message displayed alongside the spoofed one.
Frequently asked questions
- What is CVE-2023-33981?
- Briar before 1.4.22 allows attackers to spoof other users' messages in a blog, forum, or private group, but each spoofed message would need to be an exact duplicate of a legitimate message displayed alongside the spoofed one.
- How severe is CVE-2023-33981?
- CVE-2023-33981 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2023-33981 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-33981?
- CVE-2023-33981 affects Briarproject Briar. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-33981?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2023-33981 published?
- CVE-2023-33981 was published on 2023-05-24 and last updated on 2026-06-17.
References
- https://briarproject.org/news/2023-three-security-issues-found-and-fixed/
- https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_YuanmingSong.pdf
Affected products (1)
- cpe:2.3:a:briarproject:briar:*:*:*:*:*:*:*:*
More vulnerabilities in Briarproject Briar
- CVE-2023-33980 — High (CVSS 7.5): Bramble Synchronisation Protocol (BSP) in Briar before 1.4.22 allows attackers to cause a denial of service (repeated…
- CVE-2023-33983 — High (CVSS 7.4): The Introduction Client in Briar through 1.5.3 does not implement out-of-band verification for the public keys of…
- CVE-2023-33982 — Medium (CVSS 5.9): Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic…
All CVEs affecting Briarproject Briar →
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