Format string vulnerability in the Epic Games Unreal engine client, as used in multiple games, allows remote servers to execute arbitrary code via (1) the CLASS parameter in a DLMGR command, (2) a malformed package (PKG), and possibly (3) the LEVEL parameter in a WELCOME command
Published Mar 9, 2009
9.3
HIGHCVSS 2.0
EPSS 3.50%
Description
Format string vulnerability in the Epic Games Unreal engine client, as used in multiple games, allows remote servers to execute arbitrary code via (1) the CLASS parameter in a DLMGR command, (2) a malformed package (PKG), and possibly (3) the LEVEL parameter in a WELCOME command.
Affected products
No data.
- 2
- 2.5
- 3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.50% (0.03503) | 88.79th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.50% (0.03503) | 87.62th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.36% (0.02361) | 83.82th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.27% (0.00265) | 66.60th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.27% (0.00265) | 65.16th | v3 (v2023.03.01) |
| Jun 12, 2023 | 0.27% (0.00265) | 62.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.34% (0.00341) | 66.87th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.77% (0.02768) | 82.99th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.77% (0.02768) | 81.30th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.77% (0.02768) | 63.79th | v2 (v2022.01.01) |
References (10)
- http://aluigi.altervista.org/adv/unrealcfs-adv.txt x_refsource_MISCExploit
- http://archives.neohapsis.com/archives/fulldisclosure/2008-09/0190.html mailing-listx_refsource_FULLDISCExploit
- http://secunia.com/advisories/31854 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.osvdb.org/48290 vdb-entryx_refsource_OSVDB
- http://www.osvdb.org/48291 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/archive/1/496297/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/31141 vdb-entryx_refsource_BIDExploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/45088 vdb-entryx_refsource_XF
- https://exchange.xforce.ibmcloud.com/vulnerabilities/45089 vdb-entryx_refsource_XF
- https://exchange.xforce.ibmcloud.com/vulnerabilities/45090 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://aluigi.altervista.org/adv/unrealcfs-adv.txt | x_refsource_MISCExploit | |
| http://archives.neohapsis.com/archives/fulldisclosure/2008-09/0190.html | mailing-listx_refsource_FULLDISCExploit | |
| http://secunia.com/advisories/31854 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.osvdb.org/48290 | vdb-entryx_refsource_OSVDB | |
| http://www.osvdb.org/48291 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/archive/1/496297/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/31141 | vdb-entryx_refsource_BIDExploit | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/45088 | vdb-entryx_refsource_XF | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/45089 | vdb-entryx_refsource_XF | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/45090 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.