CVE-2021-25654
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 · uneditedAn arbitrary code execution vulnerability was discovered in Avaya Aura Device Services that may potentially allow a local user to execute specially crafted scripts. Affects 7.0 through 8.1.4.0 versions of Avaya Aura Device Services.
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 · high confidenceA local privilege escalation vulnerability in Avaya Aura Device Services allows an authenticated local user to execute arbitrary code via specially crafted scripts. The vulnerability stems from insufficient input validation, potentially enabling a low-privilege user to escalate to higher privileges and execute malicious code on the affected system.
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>= 7.0, <= 8.1.4.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
-
Identify if Avaya Aura Device Services is installedLocate the Avaya Aura Device Services installation on the system. Check common installation directories or use system inventory tools to find the product.Affected if The product is not installed on the system, then this CVE does not apply.
-
Determine the installed version of Avaya Aura Device ServicesUse the product's built-in version check command, look at the software's 'About' or version information in the administration interface, or check the installation logs and metadata for the version number.Affected if Unable to determine the version, assume it may be within the affected range.
-
Compare installed version against affected rangeReview the identified version against the affected range: versions 7.0 through 8.1.4.0 are vulnerable. Any version at or above 7.0 and at or below 8.1.4.0 is affected.Affected if The installed version is between 7.0 and 8.1.4.0 inclusive, then the system is affected by this vulnerability.
-
Verify local user authentication is possibleConfirm whether local user accounts can authenticate to the system. Check if local authentication methods are enabled and if non-administrator local accounts exist.Affected if Local user authentication is enabled and untrusted local users have access, the vulnerability could be exploited for privilege escalation.
If Avaya Aura Device Services version is 7.0 through 8.1.4.0 and local untrusted users can authenticate, the environment is affected by this privilege escalation vulnerability.
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 dataUpgrade Avaya Aura Device Services to version 8.1.4.1 or later, which contains the vendor patch for this vulnerability. If immediate patching is not possible, restrict local access to trusted personnel and monitor for suspicious script execution.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-25654 — 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-2021-25654 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