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TI-2020-16694 Aliases CVE-2020-27540GHSA-qmf6-mw8h-6m87

Bash injection vulnerability and bypass of signature verification in Rostelecom CS-C2SHW…

Priority MEDIUM 44CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-347.

Summary

Bash injection vulnerability and bypass of signature verification in Rostelecom CS-C2SHW 5.0.082.1. The camera reads firmware update configuration from SD card file vc\version.json. fw-sign parameter and from this configuration is directly inserted into a bash command. Firmware update is run automatically if there is special file on the inserted SD card.

Why it matters now

EPSS 0.00839 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:company:cs-c2shw_firmware:5.0.082.1:*:*:*:*:*:*:*5.0.082.1VulnerableCompany
cpe:2.3:h:company:cs-c2shw:-:*:*:*:*:*:*:*not specified by NVDRunning onCompany
  • cpe:2.3:o:company:cs-c2shw_firmware:5.0.082.1:*:*:*:*:*:*:* Versions 5.0.082.1 Vulnerable ·Company
  • cpe:2.3:h:company:cs-c2shw:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Company

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27540
  2. 2026-10-03 Alias added: GHSA-qmf6-mw8h-6m87

References

Exploit 1

  • TI-2020-16693 Heap overflow with full parsing of HTTP respose in Rostelecom CS-C2SHW 5.0.082.1. CVSS 3.1CRITICAL 9.8
  • TI-2020-16695 Denial of Service vulnerability in Rostelecom CS-C2SHW 5.0.082.1. CVSS 3.1HIGH 7.5
  • TI-2020-16696 Rostelecom CS-C2SHW 5.0.082.1 is affected by: Bash command injection. CVSS 3.1MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences