Security readout for executives and security teams
Plain-English summary
GeoVision GeoWebServer versions up to 5.3.3 are reported vulnerable to local file inclusion through improper path handling. An unauthenticated network attacker may be able to read sensitive system files. Public exploit information exists, but the provided sources do not show confirmed active exploitation.
Executive priority
Treat as high priority for any internet-exposed GeoVision GeoWebServer. The issue may expose sensitive files without authentication, and public exploit information is available. Focus first on externally reachable systems and security-camera environments tied to physical security operations.
Technical view
CVE-2021-47795 is a CWE-22 path traversal/local file inclusion issue affecting GeoVision GeoWebServer <= 5.3.3. The source bundle identifies the WebStrings.srf endpoint and improper input sanitization. CVSS v4.0 is 8.7, with network attack vector, low complexity, no privileges, and no user interaction.
Likely exposure
Exposure is most relevant where GeoVision GeoWebServer is reachable over a network, especially internet-facing surveillance or web management deployments running <= 5.3.3.
Exploitation context
ExploitDB and VulnCheck references indicate public exploit documentation exists. The CVE is not listed as KEV in the provided bundle, so active exploitation is not established here.
Researcher notes
Evidence supports LFI/path traversal in GeoWebServer <= 5.3.3. The bundle also mentions XSS and RCE, but this CVE’s listed CWE and scoring emphasize file disclosure. Patch details are not provided in the sources, so rely on GeoVision guidance for remediation specifics.
Mitigation direction
- Inventory GeoVision GeoWebServer deployments and confirm running versions.
- Prioritize systems running GeoWebServer 5.3.3 or earlier.
- Check GeoVision’s security page for vendor-supported fixes or upgrade guidance.
- Restrict external access to GeoWebServer until remediation is confirmed.
- Monitor web logs for suspicious WebStrings.srf and traversal-pattern requests.
Validation and detection
- Verify whether GeoWebServer is present on internet-facing or sensitive networks.
- Confirm installed version is newer than the affected range, if vendor guidance provides one.
- Review access logs for unusual WebStrings.srf requests.
- Validate network controls limit access to trusted administrative sources.
- Document remediation status for each identified GeoWebServer instance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-47795 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50211CVE reference · exploit
- GeoVision Cyber Security PageCVE reference · product
- VulnCheck Advisory: GeoVision Geowebserver 5.3.3 - Local FIle InclusionCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.