9.8

CVE-2026-81657: ibm guardium data protection Deserialization of Untrusted Data

CVSS: 9.8v3.1CriticalAnalyzed
Published 18-09-2026Last modified 23-09-2026
Open JSON

Vulnerability summary

CVE-2026-81657 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in ibm guardium data protection. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.85%
0%100%
Low · +0.27 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-09-2026
    PublishedVulnerability first disclosed.
  2. 23-09-2026
    Last modifiedVulnerability information updated.

Description

IBM Guardium Data Protection 12.2 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 version

EPSS trend

Probability

0.85%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

+0.27 pp

From 0.58% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.85%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ibm1 product

1 vendor · 1 product

References

1 links