CVE-2020-27545

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 56.8% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-04-15 00:00Z3 YR AGO

Last updated

2025-02-06 16:23Z1 YR AGO

Reserved

2020-10-21

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-763Release of Invalid Pointer or ReferenceBase
• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

09c63bf7799d0dd7dfc94b5e18fa368a6ffe70db0807169787f3d33a3873e343

• sourceforge.nethttps://sourceforge.net/projects/libdwarf/
• github.comhttps://github.com/davea42/libdwarf-code/commit/95f634808c01f1c61bbec56ed2395af997f397ea
• www.prevanders.nethttps://www.prevanders.net/dwarfbug.html#DW202010-001
• web.archive.orghttp://web.archive.org/web/20190601140703/https://sourceforge.net/projects/libdwarf/
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2025694