A vulnerability has been identified in Siveillance Video DLNA Server (2019 R1), Siveillance Video DLNA Server (2019 R2), Siveillance Video DLNA Server (2019 R3), Siveillance Video DLNA Server (2020 R1), Siveillance Video DLNA Server (2020 R2), Siveillance Video DLNA Server (2020 R3), Siveillance Video DLNA Server (2021 R1). The affected application contains a path traversal vulnerability that could allow to read arbitrary files on the server that are outside the application’s web document directory. An unauthenticated remote attacker could exploit this issue to access sensitive information for subsequent attacks.
CVE-2021-42021
HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 74.3%
- KEV
- Not listed
Published
November 9, 2021
Last Modified
November 21, 2024
References (2)
- productcert@siemenshttps://cert-portal.siemens.com/productcert/pdf/ssa-755517.pdf
- af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-755517.pdf
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Frequently asked(5)
What is CVE-2021-42021?
CVE-2021-42021 is a high vulnerability published on November 9, 2021. A vulnerability has been identified in Siveillance Video DLNA Server (2019 R1), Siveillance Video DLNA Server (2019 R2), Siveillance Video DLNA Server (2019 R3), Siveillance Video DLNA Server (2020 R1), Siveillance Video DLNA Server (2020 R2), Siveillance Video DLNA Server (2020 R3), Siveillance…
When was CVE-2021-42021 disclosed?
CVE-2021-42021 was first published in the National Vulnerability Database on November 9, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-42021 actively exploited?
CVE-2021-42021 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 74.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-42021?
CVE-2021-42021 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-42021?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42021, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-42021
Is Your Infrastructure Affected by CVE-2021-42021?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.