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01 Record

CVE-2024-32475

Envoy RELEASE_ASSERT using auto_sni with :authority header > 255 bytes

HighPUBLISHEDCNA: GitHub_M
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

Envoy RELEASE_ASSERT using auto_sni with :authority header > 255 bytes

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.68% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 52.1% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-04-18 14:18Z2 YR AGO
Last updated
2024-08-02 02:13Z2 YR AGO
Reserved
2024-04-12
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-253Incorrect Check of Function Return ValueBase
  • CWE-617Reachable AssertionBase
  • CWE-1284Improper Validation of Specified Quantity in InputBase
Data version
5.1
Document digest
00f44527ffae0eefb28174d600cd4e155f01822b549ecb9c03e7b62cbe407c4a

05 Affected products

VendorProductVersionsPlatforms
envoyproxyenvoy>= 1.30.0, < 11.30.1, >= 1.29.0, < 1.29.4, >= 1.28.0, < 1.28.3, >= 1.13.0, < 1.27.5, 1.13.0 to < 1.27.5—

06 References