CVE-2026-57877
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 unauthenticated format string vulnerability exists in vlsvr in GeoVision GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by improper handling of externally controlled input during log message formatting in the login processing path. A remote attacker may exploit this vulnerability by sending crafted login data, potentially causing information disclosure, memory corruption, or a denial of service.
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 confidenceAn unauthenticated format string vulnerability exists in the vlsvr component of GeoVision GV-LPC2011 and GV-LPC2211 devices running firmware V1.12 and earlier. The vulnerability stems from improper handling of user-supplied input during log message formatting in the login processing path, allowing an attacker to inject format specifiers that can read stack memory, corrupt memory, or cause denial of service.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
- Integrity
- Low
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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 the device modelLocate the physical device or access the device's web interface/admin panel to confirm the exact model number is GV-LPC2011 or GV-LPC2211Affected if The device model is GV-LPC2011 or GV-LPC2211
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Check the installed firmware versionAccess the device admin interface or use the vendor-provided management tool to view the current firmware version; compare it to the affected range V1.12 and earlierAffected if The firmware version is V1.12 or any version earlier than V1.12
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Confirm vlsvr component is presentCheck the device's running services or process list via SSH/telnet access if available, or review the firmware filesystem for the vlsvr binary or serviceAffected if The vlsvr component is present and running on the device
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Assess network exposure of the login serviceDetermine if the device login interface (typically ports 80, 443, or vendor-specific ports) is accessible from untrusted networks; use port scanning or review firewall rulesAffected if The login processing path is reachable from networks outside the trusted administrative segment
The device is affected if it is a GeoVision GV-LPC2011 or GV-LPC2211 running firmware V1.12 or earlier with the vlsvr component exposed to network access.
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 firmware update when available; until then, restrict network access to these devices via firewall or place them in an isolated network segment to minimize exposure.
- Consultation4.0 h
- Implementation2.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,160.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-57877 — 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-2026-57877 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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- 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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