CVE-2026-57277: CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in GeoVision Inc. GeoWebPlayer
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the capabilities of the various web-interfaces provided by the GeoVision software and may be necessary for them to function properly. The Websocket server can accept various commands coming from localhost. One of them, `connectionInfo` is meant to provide the necessary details to connect to a camera. The handler associated with this command that we call`handle_connection_info` contains multiple instances of string copy that can overflow. The function `handle_connect_info` copies attacker-controlled JSON strings into fixed-size buffers using manual byte-by-byte loops that do not enforce length limits. #### Buffer Overflow in key field
AI Analysis
Technical Summary
GeoWebPlayer, an addon for GeoVision software, includes a websocket server that processes commands from localhost. The 'handle_connection_info' function processes the 'connectionInfo' command by copying JSON strings into fixed-size buffers using manual byte-by-byte loops without proper length checks. This leads to a buffer overflow (CWE-120) vulnerability that can be exploited to achieve full system compromise. The affected version is V1.1.1.0. No official patch or remediation is currently documented.
Potential Impact
Successful exploitation of this buffer overflow vulnerability can lead to complete compromise of the affected system, including full loss of confidentiality, integrity, and availability. The CVSS 3.1 base score is 8.3 (high), reflecting network attack vector with high complexity, no privileges required, user interaction needed, and scope change with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the localhost websocket server component to trusted users only and monitor for suspicious activity. Avoid running GeoWebPlayer on untrusted networks or systems. Follow vendor communications for updates on patches or official mitigations.
CVE-2026-57277: CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in GeoVision Inc. GeoWebPlayer
Description
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the capabilities of the various web-interfaces provided by the GeoVision software and may be necessary for them to function properly. The Websocket server can accept various commands coming from localhost. One of them, `connectionInfo` is meant to provide the necessary details to connect to a camera. The handler associated with this command that we call`handle_connection_info` contains multiple instances of string copy that can overflow. The function `handle_connect_info` copies attacker-controlled JSON strings into fixed-size buffers using manual byte-by-byte loops that do not enforce length limits. #### Buffer Overflow in key field
CVSS v3.1
Score 8.3high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
GeoWebPlayer, an addon for GeoVision software, includes a websocket server that processes commands from localhost. The 'handle_connection_info' function processes the 'connectionInfo' command by copying JSON strings into fixed-size buffers using manual byte-by-byte loops without proper length checks. This leads to a buffer overflow (CWE-120) vulnerability that can be exploited to achieve full system compromise. The affected version is V1.1.1.0. No official patch or remediation is currently documented.
Potential Impact
Successful exploitation of this buffer overflow vulnerability can lead to complete compromise of the affected system, including full loss of confidentiality, integrity, and availability. The CVSS 3.1 base score is 8.3 (high), reflecting network attack vector with high complexity, no privileges required, user interaction needed, and scope change with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the localhost websocket server component to trusted users only and monitor for suspicious activity. Avoid running GeoWebPlayer on untrusted networks or systems. Follow vendor communications for updates on patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GV
- Date Reserved
- 2026-06-24T05:48:05.704Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a45d94127e9c7971906c937
Added to database: 07/02/2026, 03:21:37 UTC
Last enriched: 07/09/2026, 09:24:28 UTC
Last updated: 08/15/2026, 00:41:14 UTC
Views: 113
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.