CVE-2026-56877

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 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

0.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 32.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-07-16.

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

2026-07-13 21:51Z1 MO AGO

Last updated

2026-07-16 06:49Z1 MO AGO

Reserved

2026-06-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

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

Weaknesses

• CWE-472External Control of Assumed-Immutable Web ParameterBase

Data version

5.2

Document digest

ba52955392d80c9addb732c026f13470a5f2626c1293ffaf77c7d03a19c529cd

• www.skillable.comhttps://www.skillable.com/security/
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2026/07/12/1
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/07/12/1
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/07/12/2
• seclists.orghttp://seclists.org/fulldisclosure/2026/Jul/20