CVE-2021-4287

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

1.95% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 78.8% 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:H/I:N/A:N

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2022-12-27 10:32Z3 YR AGO

Last updated

2025-04-11 14:42Z1 YR AGO

Reserved

2022-12-27

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.0)

CNA CVSS vector

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

Weaknesses

• CWE-61UNIX Symbolic Link (Symlink) FollowingCompound
• CWE-59Improper Link Resolution Before File Access ('Link Following')Base

Data version

5.1

Document digest

3e16251a7bb7dfcfc926520d21a07be3fe1bc4e833314dfca4146b16f3827d03

• vuldb.comhttps://vuldb.com/?id.216876vdb-entry
• vuldb.comhttps://vuldb.com/?ctiid.216876signaturepermissions-required
• github.comhttps://github.com/ReFirmLabs/binwalk/pull/556issue-tracking
• github.comhttps://github.com/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcdpatch
• github.comhttps://github.com/ReFirmLabs/binwalk/releases/tag/v2.3.3patch