CVE-2023-52558

highpriority · track · 0EPSS 0.007 · 53 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.70% (53rd) EPSS

CVSS 7.5 · high

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · cert_bund

EPSS · scored 2026-10-27

In OpenBSD 7.4 before errata 002 and OpenBSD 7.3 before errata 019, a network buffer that had to be split at certain length that could crash the kernel after receiving specially crafted escape sequences.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-131US

affected products (6)

Products and version ranges known to be affected.

OpenBSD OpenBSDall versionsenisa_euvdEU
OpenBSD OpenBSD7.3 → 7.3 errata 019enisa_euvdEU
OpenBSD OpenBSD7.4 → 7.4 errata 002enisa_euvdEU
openbsd openbsd< 7.3nvdUScpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
openbsd openbsd= 7.3nvdUScpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
openbsd openbsd= 7.4nvdUScpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0531OpenBSD: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2024-03-03csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in OpenBSD ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd cert_bund NVD CVE.org MITRE

published 2024-03-01modified 2026-06-17

references (11)

External citations — patches, advisories, analysis.

scry

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