CVE-2021-27197 : faille élevée pelco digital sentry server (CVSS 8.1)

DSUtility.dll in Pelco Digital Sentry Server before 7.19.67 has an arbitrary file write vulnerability. The AppendToTextFile method doesn't check if it's being called from the application or from a malicious user. The vulnerability is triggered when a remote attacker crafts an HTML page (e.g., with "OBJECT classid=" and "<SCRIPT language='vbscript'>") to overwrite arbitrary files.

Sévérité

Élevée (CVSS 8.1)

Vecteur CVSS

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Exploitation active

Non signalée par la CISA

Publication

12 févr. 2021

Dernière mise à jour

17 juin 2026

• pelco digital sentry server

• Fiche CVE-2021-27197 sur le NVD (NIST)
• github.com/vitorespf/Advisories/blob/master/Pelco_Digital…
• support.pelco.com/s/article/What…