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CVE-2010-0303

27
FAUCET Score

CVE-2010-0303 describes a denial-of-service vulnerability in mystring.c of hybserv within IRCD-Hybrid (aka Hybrid2 IRC Services) versions 1.9.2 through 1.9.4. Remote attackers can crash the daemon by sending a specific ":help \t" private message to the MemoServ service. This vulnerability has a CVSS score of 5.0, indicating a medium severity, with a low attack complexity and no authentication required, leading to a partial availability impact. While not listed on the KEV catalog or Hot List, a public exploit (EDB-33581) exists, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.9.2CPE matchmatch criteria
cpe:2.3:a:dinko_korunic:hybserv2:1.9.2:*:*:*:*:*:*:*
1.9.3CPE matchmatch criteria
cpe:2.3:a:dinko_korunic:hybserv2:1.9.3:*:*:*:*:*:*:*
1.9.4CPE matchmatch criteria
cpe:2.3:a:dinko_korunic:hybserv2:1.9.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
8.06%
Probability of exploitation in next 30 days
EPSS Percentile
94.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-33581 · Jan 29, 2010
This CVE's current EPSS score of 0.0806 is in the 92nd percentile among its peer group of 23,701 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

bugs.debian.org / cgi-bin/bugreport.cgi
marc.info
secunia.com / advisories/38350
Vendor Advisory
secunia.com / advisories/38352
Vendor Advisory
security.debian.org / pool/updates/main/h/hybserv/hybserv_1.9.2-4+lenny2.diff.gz
Patch
exchange.xforce.ibmcloud.com / vulnerabilities/55992
debian.org / security/2010/dsa-1982
securityfocus.com / bid/38006