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CVE-2023-41913

CRITICALCVSS 9.8/10EPSS 2.29%

Last modified

CVE-2023-41913 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. EPSS estimates a 2.29% chance of exploitation in the next 30 days.

Description

strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.29%

81.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
StrongswanStrongswan>= 5.3.0, < 5.9.12

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-41913?
strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.
How severe is CVE-2023-41913?
CVE-2023-41913 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.29% probability of exploitation in the next 30 days.
How do I fix CVE-2023-41913?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-41913?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST