Lynx: Heap-based buffer overflow by processing URLs with % (percent) character in the domain name
Published Aug 20, 2010
6.8
MEDIUMCVSS 2.0
EPSS 3.66%
Description
Heap-based buffer overflow in the convert_to_idna function in WWW/Library/Implementation/HTParse.c in Lynx 2.8.8dev.1 through 2.8.8dev.4 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a malformed URL containing a % (percent) character in the domain name.
Affected products
No data.
No data.
Red Hat Enterprise Linux 4
lynx
Not affected
Red Hat Enterprise Linux 5
lynx
Not affected
Red Hat Enterprise Linux 6
lynx
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | lynx | Not affected | n/a |
| Red Hat Enterprise Linux 5 | lynx | Not affected | n/a |
| Red Hat Enterprise Linux 6 | lynx | Not affected | n/a |
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:P/I:P/A:P
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 2, 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.66% (0.03663) | 89.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.66% (0.03663) | 88.16th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.38% (0.02376) | 83.54th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.07% (0.05069) | 82.61th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.65% (0.02650) | 84.76th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.96% (0.04959) | 93.12th | v3 (v2023.03.01) |
| Apr 10, 2023 | 5.32% (0.05324) | 91.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.58% (0.04579) | 91.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.97% (0.04967) | 89.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.97% (0.04967) | 88.46th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.97% (0.04967) | 74.95th | v2 (v2022.01.01) |
References (10)
- http://marc.info/?l=oss-security&m=128151768510564&w=2 mailing-listx_refsource_MLIST
- http://marc.info/?l=oss-security&m=128152412221677&w=2 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-1642-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2010/2042 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2010-2810 Vendor Advisory
- https://bugs.launchpad.net/ubuntu/+source/lynx-cur/+bug/613254 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=630677 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/61007 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2010-2810
- https://www.cve.org/CVERecord?id=CVE-2010-2810
| Link | Providers | Tags |
|---|---|---|
| http://marc.info/?l=oss-security&m=128151768510564&w=2 | mailing-listx_refsource_MLIST | |
| http://marc.info/?l=oss-security&m=128152412221677&w=2 | mailing-listx_refsource_MLIST | |
| http://www.ubuntu.com/usn/USN-1642-1 | vendor-advisoryx_refsource_UBUNTU | |
| http://www.vupen.com/english/advisories/2010/2042 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2010-2810 | Vendor Advisory | |
| https://bugs.launchpad.net/ubuntu/+source/lynx-cur/+bug/613254 | x_refsource_CONFIRM | |
| https://bugzilla.redhat.com/show_bug.cgi?id=630677 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/61007 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-2810 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-2810 |
Change history (0)
No recorded changes yet.