How severe is CVE-2023-33982?

CVE-2023-33982 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-33982 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-33982?

CVE-2023-33982 affects Briarproject Briar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-33982?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-33982 published?

CVE-2023-33982 was published on 2023-05-24 and last updated on 2026-06-17.

CVE-2023-33982

CVE-2023-33982 is a medium-severity vulnerability in Briarproject Briar with a CVSS 3.x base score of 5.9. 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-326.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Briarproject Briar
Published: 2023-05-24
Last modified: 2026-06-17

Description

Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic between two accounts if they later compromise both accounts. NOTE: the eavesdropping is typically impractical because BHP runs over an encrypted session that uses the Tor hidden service protocol.

Frequently asked questions

What is CVE-2023-33982?: Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic between two accounts if they later compromise both accounts. NOTE: the eavesdropping is typically impractical because BHP runs over an encrypted session that uses the Tor hidden service protocol.
How severe is CVE-2023-33982?: CVE-2023-33982 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-33982 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-33982?: CVE-2023-33982 affects Briarproject Briar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-33982?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-33982 published?: CVE-2023-33982 was published on 2023-05-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:briarproject:briar:*:*:*:*:*:*:*:*

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