CVE-2026-78406: ibm security verify access Deserialization of Untrusted Data
CVSS: 9.8v3.1CriticalAnalyzed
Published 08-10-2026Last modified 10-10-2026
Vulnerability summary
CVE-2026-78406 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in ibm security verify access. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.5% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.50%
0%100%
Low · Change unavailableKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 08-10-2026PublishedVulnerability first disclosed.
- 10-10-2026Last modifiedVulnerability information updated.
Description
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote unauthenticated attacker to execute arbitrary code on the system due to the deserialization of untrusted data.
CVSS metrics
2 scores · 2 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
09-10-202620-10-2026
EPSS score0.50%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ibm4 products
- security verify access≥ 10.0, ≤ 10.0.9.2 | ≥ 10.0.0, < 10.0.9.3
- security_verify_access_container≥ 10.0, ≤ 10.0.9.2 | ≥ 10.0.0.0, ≤ 10.0.9.2
- verify identity access≥ 11.0, ≤ 11.0.3 | ≥ 11.0, < 11.0.3.1
- verify_identity_access_container≥ 11.0, ≤ 11.0.3 | ≥ 11.0.0.0, ≤ 11.0.3.0
1 vendor · 4 products