The DCC server command in the Mirc 5.5 client doesn't filter characters from file names…
Priority LOW 38Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The DCC server command in the Mirc 5.5 client doesn't filter characters from file names properly, allowing remote attackers to place a malicious file in a different location, possibly allowing the attacker to execute commands.
Why it matters now
EPSS 0.02673 85th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:khaled_mardam-bey:mirc:5.5:*:*:*:*:*:*:* | 5.5 | Vulnerable | Khaled Mardam-bey |
- cpe:2.3:a:khaled_mardam-bey:mirc:5.5:*:*:*:*:*:*:* Versions 5.5 Vulnerable ·Khaled Mardam-bey
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-1999-0399
- 2026-10-03 Alias added: GHSA-mcv3-c4v3-2pf4
References
—
More Khaled Mardam-bey Mirc vulnerabilities
- TI-2002-01378 Buffer overflow in mIRC 6.0.2 and earlier allows remote attackers to execute arbitrary code via a long $asctime value. CVSS 2.0HIGH 7.5
- TI-2002-00220 Buffer overflow in mIRC 5.91 and earlier allows a remote server to execute arbitrary code… CVSS 2.0HIGH 7.5
- TI-2001-00313 The locking feature in mIRC 5.7 allows local users to bypass the password mechanism by… CVSS 2.0HIGH 7.5
- TI-2001-00901 DDE in mIRC allows local users to launch applications under another user's account via a… CVSS 2.0HIGH 7.2
- TI-2003-01412 Buffer overflow in mIRC 6.1 and 6.11 allows remote attackers to cause a denial of service… CVSS 2.0MEDIUM 5.0
- TI-2002-00410 mIRC DCC server protocol allows remote attackers to gain sensitive information such as… CVSS 2.0MEDIUM 5.0
Sources
- CVE-1999-0399 · CVE Program
- CVE-1999-0399 · NVD
- FIRST EPSS
- GHSA-mcv3-c4v3-2pf4 · GitHub Advisory Database · CC BY 4.0
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