CVE-2021-27232
CVE-2021-27232 is a high-severity vulnerability in Pelco Digital Sentry Server with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Pelco Digital Sentry Server
- Published:
- Last modified:
Description
The RTSPLive555.dll ActiveX control in Pelco Digital Sentry Server 7.18.72.11464 has a SetCameraConnectionParameter stack-based buffer overflow. This can be exploited by a remote attacker to potentially execute arbitrary attacker-supplied code. The victim would have to visit a malicious webpage using Internet Explorer where the exploit could be triggered.
Frequently asked questions
- What is CVE-2021-27232?
- The RTSPLive555.dll ActiveX control in Pelco Digital Sentry Server 7.18.72.11464 has a SetCameraConnectionParameter stack-based buffer overflow. This can be exploited by a remote attacker to potentially execute arbitrary attacker-supplied code. The victim would have to visit a malicious webpage using Internet Explorer where the exploit could be triggered.
- How severe is CVE-2021-27232?
- CVE-2021-27232 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-27232 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-27232?
- CVE-2021-27232 affects Pelco Digital Sentry Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-27232?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-27232 published?
- CVE-2021-27232 was published on 2021-02-16 and last updated on 2026-06-17.
References
- https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server-RSTPLive555%20Activex%20Buffer%20overflow.txt
- https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-history
Affected products (1)
- cpe:2.3:a:pelco:digital_sentry_server:7.18.72.11464:*:*:*:*:*:*:*
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