Is CVE-2020-15158 in the CISA KEV catalog?

No. CVE-2020-15158 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-15158?

CVE-2020-15158 has a CVSS v3 base score of 7.7 (HIGH).

What is the EPSS score for CVE-2020-15158?

CVE-2020-15158 has an EPSS score of 2.04% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-15158?

Upgrade libiec61850 to 1.4.3 or later.

CVE & CISA-KEV Catalog

CVE-2020-15158

HIGHEPSS 79th pctl

7.7

CVSS v3

NVD

Description

In libIEC61850 before version 1.4.3, when a message with COTP message length field with value < 4 is received an integer underflow will happen leading to heap buffer overflow. This can cause an application crash or on some platforms even the execution of remote code. If your application is used in open networks or there are untrusted nodes in the network it is highly recommend to apply the patch. This was patched with commit 033ab5b. Users of version 1.4.x should upgrade to version 1.4.3 when available. As a workaround changes of commit 033ab5b can be applied to older versions.

CWE-119Buffer Overflow CWE-122Heap-based Buffer Overflow CWE-191

How to fix

Remediation Available

libiec61850NVD

Affected:>= 1.4.0, < 1.4.3Fixed in:1.4.3CVE-2020-15158derived from NVD

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

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H

Exploit Intelligence

2.04%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory2

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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 2024-11-21.