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01 Record

CVE-2023-4807

POLY1305 MAC implementation corrupts XMM registers on Windows

HighPUBLISHEDCNA: openssl
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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02 Description

POLY1305 MAC implementation corrupts XMM registers on Windows

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.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total 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
1.58% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 75.0% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-14.
Red Hat severity
Low. 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
2023-09-08 11:01Z3 YR AGO
Last updated
2026-10-14 21:40Z14 DAYS AGO
Reserved
2023-09-06
Assigning CNA
openssl
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-440Expected Behavior ViolationBase
Data version
5.2
Document digest
e992ae15edebe35b2ed0e078d340421900c315f86cc05a5ec2677024d1f32c99

05 Affected products

VendorProductVersionsPlatforms
OpenSSLOpenSSL3.1.0 to < 3.1.3, 3.0.0 to < 3.0.11, 1.1.1 to < 1.1.1w—

06 References