Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Unauthenticated network attack on the login path (AV:N/AC:L/PR:N/UI:N); reliable crash gives A:H while probabilistic format-string memory read/write yields only partial C:L/I:L.
Primary rating from Vendor (GV).
CVSS VectorVendor: GV
Lifecycle Timeline
1DescriptionCVE.org
An 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.
AnalysisAI
Unauthenticated format string flaw in the vlsvr service of GeoVision GV-LPC2011 and GV-LPC2211 license plate recognition cameras (firmware V1.12 and earlier) lets remote attackers send crafted login data that the device passes unsanitized into a log-formatting routine. Successful exploitation can leak memory contents, corrupt memory, or crash the service, with the high availability impact (CVSS 8.6) reflecting denial of service as the most reliable outcome. No public exploit identified at time of analysis and the issue is not listed in CISA KEV.
Technical ContextAI
GeoVision GV-LPC2011/GV-LPC2211 are dedicated license plate capture/recognition camera appliances; vlsvr is the network-facing service that processes login requests. The root cause is CWE-134 (Use of Externally-Controlled Format String): attacker-supplied login data reaches a formatting function (e.g., a printf-family call or logging wrapper) as part of the format string rather than as a data argument. Format specifiers such as %x/%s/%n in the input are then interpreted, allowing the attacker to read adjacent stack/memory (%x, %s) for information disclosure or write to memory (%n) for corruption - the classic mechanism behind both the info-leak and memory-corruption outcomes described.
RemediationAI
Consult the GeoVision security advisory at https://www.geovision.com.tw/cyber_security.php and upgrade GV-LPC2011/GV-LPC2211 firmware to a release later than V1.12 once the vendor publishes a fixed build - no exact patched version number was provided in the input, so Patch availability per vendor advisory should be verified directly with GeoVision. Until a confirmed fixed firmware is applied, restrict network reachability of the vlsvr service: place the cameras on an isolated management VLAN, block their login/management ports at the perimeter firewall so they are not exposed to the internet, and limit access to known operator IP addresses via ACLs (trade-off: legitimate remote management must traverse a VPN or jump host). Monitor the devices for unexpected reboots or service crashes as a signature of attempted exploitation.
More in Gv Lpclpc2011 2211
View allRemote code execution in GeoVision GV-LPC2011 and GV-LPC2211 license-plate-recognition cameras (firmware V1.12 and earli
Unauthenticated remote code execution and denial of service in GeoVision GV-LPC2011 and GV-LPC2211 license plate camera
Remote code execution and denial of service in GeoVision GV-LPC2011 and GV-LPC2211 license-plate-recognition cameras (V1
Remote unauthenticated stack-based buffer overflow in the vlsvr login service of GeoVision GV-LPC2011 and GV-LPC2211 lic
Authentication replay in GeoVision GV-LPC2211 license-plate-recognition cameras (firmware V1.13, marketed as GV-LPCLPC20
Authenticated ONVIF command injection in GeoVision GV-LPC2211 V1.13 allows a low-privileged network attacker to execute
Denial of service in GeoVision GV-LPC2011 and GV-LPC2211 license-plate capture devices (firmware V1.12 and earlier) lets
Arbitrary file read in GeoVision GV-LPC2011 and GV-LPC2211 license plate recognition appliances (firmware V1.12 and earl
Denial of service in GeoVision GV-LPC2011 and GV-LPC2211 license-plate-capture devices (firmware V1.12 and earlier) allo
Denial of service in GeoVision GV-LPC2011 and GV-LPC2211 license plate recognition cameras (firmware V1.12 and earlier)
Denial of service in GeoVision GV-LPC2011 and GV-LPC2211 license plate cameras (firmware V1.12 and earlier) lets remote
OS command injection in GeoVision GV-LPC2211 firmware V1.13 allows an authenticated administrator to execute arbitrary c
Same weakness CWE-134 – Use of Externally-Controlled Format String
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-39633
GHSA-3ff2-4v74-vhq8