CVE-2021-27211

HIGHNVD 7.57.5—Elevated

7.5

steghide 0.5.1 relies on a certain 32-bit seed value, which makes it easier for attackers to detect hidden data.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 70.9%
KEV: Not listed

Published

February 15, 2021

Last Modified

November 21, 2024

References (8)

cve@mitrehttp://packetstormsecurity.com/files/165199/Steghide-Hidden-Data-Extraction.html
cve@mitrehttps://github.com/StefanoDeVuono/steghide
cve@mitrehttps://github.com/b4shfire/stegcrack
cve@mitrehttps://sourceforge.net/projects/steghide/files/steghide/0.5.1/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/165199/Steghide-Hidden-Data-Extraction.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/StefanoDeVuono/steghide
af854a3a-2127-422b-91ae-364da2661108https://github.com/b4shfire/stegcrack
af854a3a-2127-422b-91ae-364da2661108https://sourceforge.net/projects/steghide/files/steghide/0.5.1/

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 20:48 UTCEG score recompute
2026-05-26 20:48 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCb4shfire/stegcrack
First seen Feb 15, 2021
Exploit script for CVE-2021-27211
Open source ↗

Frequently asked(5)

What is CVE-2021-27211?

CVE-2021-27211 is a high vulnerability published on February 15, 2021. steghide 0.5.1 relies on a certain 32-bit seed value, which makes it easier for attackers to detect hidden data.

When was CVE-2021-27211 disclosed?

CVE-2021-27211 was first published in the National Vulnerability Database on February 15, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-27211 actively exploited?

CVE-2021-27211 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 70.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-27211?

CVE-2021-27211 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-27211?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27211, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-27211

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(2)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-27211?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)