EUVD-2026-75902
GHSA-q5pg-prw5-6c62
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable parser, no privileges needed to submit PKCS#7 data; impact is availability-only CPU exhaustion with no confidentiality or integrity effect.
Primary rating from Vendor (vendor:ubuntu).
CVSS VectorVendor: vendor:ubuntu
Lifecycle Timeline
3DescriptionCVE.org
Unbounded Iteration When Decrypting PKCS#7 Containers
AnalysisAI
Unbounded iteration during PKCS#7 container decryption exposes affected systems to a denial-of-service condition where a crafted cryptographic payload causes a parsing loop to run without termination bounds. The specific library or package is not identified in the available intelligence - Ubuntu is the reporting source, suggesting this affects a cryptographic library they distribute (candidates include OpenSSL, GnuTLS, NSS, or similar). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The service or application must actively invoke the PKCS#7 decryption path of the vulnerable library against attacker-supplied input. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk assessment is severely constrained by missing data: no CVSS vector, no CWE, no EPSS score, no KEV status, no POC, and no identified product or version. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No patch version or vendor advisory URL is available in the current intelligence. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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External POC / Exploit Code
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