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CVE-2003-0783

27
FAUCET Score

CVE-2003-0783 describes multiple buffer overflows in hztty version 2.0, affecting products by yongguang_zhang. This vulnerability allows local users to gain root privileges, carrying a CVSS score of 7.2 (High) due to its low attack complexity and complete impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, an exploit for local privilege escalation on RedHat 9.0 is publicly available via ExploitDB. Despite the existence of public exploit code, there is no evidence of active exploitation, Metasploit or Nuclei modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.0CPE matchmatch criteria
cpe:2.3:a:yongguang_zhang:hztty:2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-104 · Sep 21, 2003
This CVE's current EPSS score of 0.0106 is in the 80th percentile among its peer group of 3,241 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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

Patch Available

Vendor Patches (1)

debianpatch availablevia nvd_reference
View patch

References

marc.info
secunia.com / advisories/9792
securitytracker.com / id
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/13243
debian.org / security/2003/dsa-385
PatchVendor Advisory
osvdb.org / 7119
securityfocus.com / bid/8656
ExploitPatchVendor Advisory