CVE-2021-27197
DSUtility.dll in Pelco Digital Sentry Server before 7.19.67 has an arbitrary file write vulnerability.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.79%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- EPSS
- 0.79% probability · 56th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-346
- Affected
- pelco/digital sentry server
- Source
- cve@mitre.org
EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server_AFW.txtExploit, Third Party Advisory
- https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-historyRelease Notes, Vendor Advisory
- https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server_AFW.txtExploit, Third Party Advisory
- https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-historyRelease Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.