Is CVE-2011-4157 in the CISA KEV catalog?

No. CVE-2011-4157 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-4157?

CVE-2011-4157 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2011-4157?

CVE-2011-4157 has an EPSS score of 13.40% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2011-4157

HIGHEPSS 96th pctl

10.0

CVSS v2

NVD

Description

Stack-based buffer overflow in hydra.exe in HP SAN/iQ before 9.5 on the HP StorageWorks P4000 Virtual SAN Appliance allows remote attackers to execute arbitrary code via a crafted login request.

CWE-119Buffer Overflow

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

13.40%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03082086
http://www.securityfocus.com/bid/47005
http://www.securityfocus.com/bid/51042
http://www.zerodayinitiative.com/advisories/ZDI-11-111/
https://exchange.xforce.ibmcloud.com/vulnerabilities/71766

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.