MEDIUM
Integer underflow in net/base/escape.cc in chrome.dll in Google Chrome 0.2.149.27 allows remote attackers to cause a denial of service (browser crash) via a URI with an invalid handler followed by a "%" (percent) character, which triggers a buffer over-read, as demonstrated using an "about:%" URI
Published Aug 18, 2009
4.3
MEDIUMCVSS 2.0
EPSS 4.80%
Description
Integer underflow in net/base/escape.cc in chrome.dll in Google Chrome 0.2.149.27 allows remote attackers to cause a denial of service (browser crash) via a URI with an invalid handler followed by a "%" (percent) character, which triggers a buffer over-read, as demonstrated using an "about:%" URI.
Affected products
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.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.80% 0.04800
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.04800
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.80% (0.04800) | 91.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.80% (0.04800) | 90.77th | v5 (v2026.06.15) |
| Mar 6, 2026 | 8.07% (0.08071) | 91.99th | v4 (v2025.03.14) |
| Mar 30, 2025 | 9.80% (0.09800) | 92.22th | v4 (v2025.03.14) |
| Mar 29, 2025 | 14.29% (0.14287) | 90.68th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.80% (0.09800) | 92.40th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.34% (0.03344) | 91.72th | v3 (v2023.03.01) |
| Nov 21, 2023 | 3.34% (0.03344) | 90.32th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.46% (0.03458) | 90.01th | v3 (v2023.03.01) |
| Mar 6, 2023 | 11.00% (0.10995) | 94.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 11.00% (0.10995) | 94.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 11.00% (0.10995) | 88.52th | v2 (v2022.01.01) |
Weaknesses (1)
References (9)
- http://archives.neohapsis.com/archives/bugtraq/2008-09/0028.html mailing-listx_refsource_BUGTRAQExploit
- http://code.google.com/p/chromium/issues/detail?id=122 x_refsource_CONFIRM
- http://evilfingers.com/advisory/google_chrome_poc.php x_refsource_MISCExploit
- http://osvdb.org/47908 vdb-entryx_refsource_OSVDBExploit
- http://src.chromium.org/viewvc/chrome/branches/chrome_official_branch/src/net/base/escape.cc?r1=1757&r2=1760&pathrev=1760 x_refsource_CONFIRMExploit
- http://www.securityfocus.com/bid/30983 vdb-entryx_refsource_BIDExploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44899 vdb-entryx_refsource_XF
- https://www.evilfingers.com/advisory/Google_Chrome_Browser_0.2.149.27_in_chrome_dll.php x_refsource_MISCExploit
- https://www.exploit-db.com/exploits/6353 exploitx_refsource_EXPLOIT-DB
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2008-09/0028.html | mailing-listx_refsource_BUGTRAQExploit | |
| http://code.google.com/p/chromium/issues/detail?id=122 | x_refsource_CONFIRM | |
| http://evilfingers.com/advisory/google_chrome_poc.php | x_refsource_MISCExploit | |
| http://osvdb.org/47908 | vdb-entryx_refsource_OSVDBExploit | |
| http://src.chromium.org/viewvc/chrome/branches/chrome_official_branch/src/net/base/escape.cc?r1=1757&r2=1760&pathrev=1760 | x_refsource_CONFIRMExploit | |
| http://www.securityfocus.com/bid/30983 | vdb-entryx_refsource_BIDExploit | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/44899 | vdb-entryx_refsource_XF | |
| https://www.evilfingers.com/advisory/Google_Chrome_Browser_0.2.149.27_in_chrome_dll.php | x_refsource_MISCExploit | |
| https://www.exploit-db.com/exploits/6353 | exploitx_refsource_EXPLOIT-DB |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 18, 2009
Updated Aug 7, 2024
Reserved Aug 17, 2009
Link CVE-2008-6995
CISA Vulnrichment
Updated n/a