ip_nat_pptp in the PPTP NAT helper (netfilter/ip_nat_helper_pptp.c) in Linux kernel 2.6.14, and other versions, allows local users to cause a denial of service (memory corruption or crash) via a crafted outbound packet that causes an incorrect offset to be calculated from pointer arithmetic when non-linear SKBs (socket buffers) are used
Published Jan 23, 2006
4.9
MEDIUMCVSS 2.0
EPSS 0.37%
Description
ip_nat_pptp in the PPTP NAT helper (netfilter/ip_nat_helper_pptp.c) in Linux kernel 2.6.14, and other versions, allows local users to cause a denial of service (memory corruption or crash) via a crafted outbound packet that causes an incorrect offset to be calculated from pointer arithmetic when non-linear SKBs (socket buffers) are used.
Affected products
No data.
- 2.6.14
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:L/AC:L/Au:N/C:N/I:N/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 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 | 0.37% (0.00369) | 28.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00360) | 27.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00078) | 20.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00060) | 27.52th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00060) | 25.55th | v3 (v2023.03.01) |
| Jun 18, 2023 | 0.06% (0.00060) | 23.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
No CWE recorded.
References (7)
- http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=03b9feca89366952ae5dfe4ad8107b1ece50b710 x_refsource_CONFIRM
- http://secunia.com/advisories/18482 third-party-advisoryx_refsource_SECUNIA
- http://securityreason.com/securityalert/388 third-party-advisoryx_refsource_SREASON
- http://www.securityfocus.com/bid/16414 vdb-entryx_refsource_BID
- http://www.trustix.org/errata/2006/0004 vendor-advisoryx_refsource_TRUSTIX
- http://www.vupen.com/english/advisories/2006/0220 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24204 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=03b9feca89366952ae5dfe4ad8107b1ece50b710 | x_refsource_CONFIRM | |
| http://secunia.com/advisories/18482 | third-party-advisoryx_refsource_SECUNIA | |
| http://securityreason.com/securityalert/388 | third-party-advisoryx_refsource_SREASON | |
| http://www.securityfocus.com/bid/16414 | vdb-entryx_refsource_BID | |
| http://www.trustix.org/errata/2006/0004 | vendor-advisoryx_refsource_TRUSTIX | |
| http://www.vupen.com/english/advisories/2006/0220 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/24204 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.