CVE-2026-55706

highpriority · track · 33EPSS 0.004 · 29 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.35% (29th) EPSS

CVSS 8.3 · high

Is it mine?

7 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.

cvss

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

8.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–8.3

v3.18.3highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.6 · impact 6

v3.15.8mediumAV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU

v3.15.8mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:Lsecondary · ENISA EU

v3.15.8mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:Lsecondary · cve@mitre.org USexploitability 1.6 · impact 3.7

v3.17.6highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1284USCWE-1284US

affected products (7)

Products and version ranges known to be affected.

OpenBSD OpenBSD <=7.6all versionscert_bundDE
OpenBSD OpenBSD commit <76e2b1c1fc4ac0883a72d3544131ad5cee7adf8all versionscert_bundDE
OpenBSD OpenBSD≤ commit <76e2b1c1fc4ac0883a72d3544131ad5cee7adf8cert_bundDE
OpenBSD OpenBSD≤ 7.6cert_bundDE
OpenBSD OpenBSD0 → 076e2b1c1fc4…enisa_euvdEU
The OpenBSD Project OpenBSD≤ 7.9fstec_bduRU
openbsd openbsd≤ 7.6nvdUScpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1984OpenBSD: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2026-06-16csaf · cert_bundDE
Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in OpenBSD ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2026-06-17modified 2026-07-13

references (11)

External citations — patches, advisories, analysis.

scry

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