CVE-2026-55706

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 28.4% of scored records. A rank, not a probability.

NVD base score

8.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-13.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-06-17 00:53Z2 MO AGO

Last updated

2026-06-17 14:33Z2 MO AGO

Reserved

2026-06-17

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

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

Weaknesses

• CWE-1284Improper Validation of Specified Quantity in InputBase

Data version

5.2

Document digest

a021dc580d8e610c498fb29ae1a8185a236b778aff308c95937ca4bb0f4ed9a6

• blog.argus-systems.aihttps://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.html
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2026/06/16/9
• github.comhttps://github.com/openbsd/src/commit/076e2b1c1fc4ac0883a72d3544131ad5cee7adf8
• blog.argus-systems.aihttps://blog.argus-systems.ai/blog/poc-001-pap-bypass.pyexploit