CVE-2021-39076
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIBM Security Guardium 10.5 and 11.3 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt sensitive information. IBM X-Force ID: 215585.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceIBM Security Guardium versions 10.5 and 11.3 use weaker than expected cryptographic algorithms that could allow a remote attacker to decrypt sensitive information stored or processed by the system. The specific weak algorithms are not detailed in the advisory, but the vulnerability enables disclosure of encrypted data.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 10.5= 11.3CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Verify IBM Security Guardium versionUse the Guardium CLI or web interface to check the installed version. From CLI: run 'version' or 'show version' command. From web UI: navigate to Admin > System > Version Info.Affected if The installed version is exactly 10.5 or exactly 11.3.
-
Identify cryptographic configuration filesLocate Guardium encryption and key management configuration files. These are typically found in the Guardium installation directory under /config or /etc, or through the web UI at Admin > Security and Privacy > Encryption Settings.Affected if Weak cryptographic algorithms are configured in the encryption settings and the version is 10.5 or 11.3.
-
Inspect cipher suite settingsReview the cipher suites and algorithms configured for data-at-rest encryption and TLS communications. Check for presence of weak algorithms such as MD5, SHA-1, DES, or 3DES in the encryption configuration.Affected if Weak or outdated cipher algorithms are enabled and the system version is 10.5 or 11.3.
-
Check data encryption storage configurationExamine how Guardium encrypts stored sensitive data. Access the encryption configuration through the web UI: Settings > System Configuration > Data Encryption or via CLI commands like 'show encryption' or 'get encryption-config'.Affected if Data encryption is using the weak cryptographic implementation and version is 10.5 or 11.3.
A user is affected if their Guardium installation is exactly version 10.5 or 11.3 and has weak cryptographic algorithms configured for data encryption or secure communications.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply IBM security patches for this vulnerability per the IBM Security Bulletin. Consider rotating any sensitive credentials or keys that may have been protected by the weaker cryptographic implementations as a defensive measure.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-39076 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-39076 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data