CVE-2023-38697

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

0.75% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 54.6% of scored records. A rank, not a probability.

NVD base score

5.3 (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:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. 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.

Published

2023-08-04 17:32Z3 YR AGO

Last updated

2024-10-04 19:39Z2 YR AGO

Reserved

2023-07-24

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

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

Weaknesses

• CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base

Data version

5.1

Document digest

ae9769b513192919de9ebf0be65f09959854b83a91ca17df84ccaac8c2e5225a

• github.comhttps://github.com/socketry/protocol-http1/security/advisories/GHSA-6jwc-qr2q-7xwjx_refsource_CONFIRM
• github.comhttps://github.com/socketry/protocol-http1/pull/20x_refsource_MISC
• github.comhttps://github.com/socketry/protocol-http1/commit/e11fc164fd2b36f7b7e785e69fa8859eb06bceddx_refsource_MISC
• www.rfc-editor.orghttps://www.rfc-editor.org/rfc/rfc9112#name-chunked-transfer-codingx_refsource_MISC