CVE-2022-26393
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 · uneditedThe Baxter Spectrum WBM is susceptible to format string attacks via application messaging. An attacker could use this to read memory in the WBM to access sensitive information or cause a Denial of Service (DoS) on the WBM.
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 confidenceThe Baxter Spectrum WBM (Wireless Bridge Module) contains a format string vulnerability in its application messaging functionality. This allows an attacker to inject format specifiers into user-controlled input, potentially reading arbitrary memory contents to obtain sensitive data or causing the application to crash (DoS).
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= 20d29all versionsall versionsall versionsCVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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.
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Identify Baxter Spectrum wireless devices in your environmentInventory all medical devices and check for Baxter Spectrum Wireless Battery Module, Baxter Sigma Spectrum 35700bax, 35700bax2, or 35700bax3 devices. Consult device management interfaces or network scans for these product identifiers.Affected if Any of these four device models are present in the environment
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Check Baxter Spectrum Wireless Battery Module firmware versionAccess the device management console or check firmware version through the WBM interface. Look for version identifier 20d29.Affected if The Wireless Battery Module firmware version equals exactly 20d29
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Check Baxter Sigma Spectrum firmware version for 35700bax variantsAccess the pump or WBM configuration interface and retrieve the installed firmware version for Sigma Spectrum models 35700bax, 35700bax2, or 35700bax3.Affected if Any Sigma Spectrum model (35700bax, 35700bax2, or 35700bax3) is running any firmware version - all versions are affected
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Verify wireless messaging functionality is enabledCheck the device configuration settings or WBM interface for application messaging features. Look for options related to wireless messaging, alerts, or remote communication.Affected if The wireless messaging or application messaging functionality is enabled on the device
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Check network exposure of WBM messaging interfaceReview network segmentation and firewall rules around the Baxter Spectrum devices. Determine if the WBM messaging port is accessible from untrusted network segments.Affected if The WBM messaging interface is reachable from network segments outside the medical device VLAN
Your environment is affected if you have any Baxter Spectrum Wireless Battery Module (firmware 20d29) or any Sigma Spectrum model (35700bax, 35700bax2, or 35700bax3) with wireless messaging enabled and exposed on the network.
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 vendor-provided patches for the Baxter Spectrum WBM. If no patch is available, implement input validation to sanitize all user-supplied strings before passing them to format functions, and restrict network access to the WBM messaging interface.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-26393 — 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-2022-26393 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
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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
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