Is CVE-2009-1378 in the CISA KEV catalog?

No. CVE-2009-1378 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-1378?

CVE-2009-1378 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2009-1378?

CVE-2009-1378 has an EPSS score of 12.75% (96th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-1378?

Upgrade openssl on debian 11 to 0.9.8k-1 or later.

CVE & CISA-KEV Catalog

CVE-2009-1378

MEDIUMEPSS 96th pctl

5.0

CVSS v2

NVD

Description

Multiple memory leaks in the dtls1_process_out_of_seq_message function in ssl/d1_both.c in OpenSSL 0.9.8k and earlier 0.9.8 versions allow remote attackers to cause a denial of service (memory consumption) via DTLS records that (1) are duplicates or (2) have sequence numbers much greater than current sequence numbers, aka "DTLS fragment handling memory leak."

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

opensslDebian

Fixed in:0.9.8k-1CVE-2009-1378

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

12.75%probability of exploitation in 30 days

96thpercentile

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

References

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	55%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	19%	-	-

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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 2026-04-23.