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CVE-2008-2021

26
FAUCET Score

CVE-2008-2021 describes a heap-based buffer overflow vulnerability in Lhaplus versions prior to 1.57. This flaw allows remote attackers to execute arbitrary code by crafting a malicious ZOO archive with an excessively long comment field. With a CVSS score of 7.5, this vulnerability is considered highly severe, requiring no authentication and having low attack complexity, potentially leading to partial confidentiality, integrity, and availability compromise. While there is no evidence of active exploitation, no public exploit code, and it is not listed in CISA's KEV catalog, the vulnerability has garnered significant community discussion, indicating awareness among security professionals.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.56CPE matchmatch criteria
cpe:2.3:a:lhaplus:lhaplus:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.48%
Probability of exploitation in next 30 days
EPSS Percentile
87.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0348 is in the 78th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / jp/JVN%2374468481/index.html
secunia.com / advisories/29972
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/42032
www7a.biglobe.ne.jp / ~schezo
fourteenforty.jp / research/advisory.cgi
securityfocus.com / bid/28953
vupen.com / english/advisories/2008/1369/references