Off-by-one buffer overflow in spamc of SpamAssassin 2.40 through 2.43, when using BSMTP mode ("-B"), allows remote attackers to execute arbitrary code via email containing headers with leading "." characters
Published Apr 4, 2008
7.6
HIGHCVSS 2.0
EPSS 4.56%
Description
Off-by-one buffer overflow in spamc of SpamAssassin 2.40 through 2.43, when using BSMTP mode ("-B"), allows remote attackers to execute arbitrary code via email containing headers with leading "." characters.
Affected products
No data.
- 2.40
- 2.41
- 2.42
- 2.43
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of SpamAssassin as shipped with Red Hat Enterprise Linux 3, 4, or 5.
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:H/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.56% (0.04564) | 91.31th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.56% (0.04564) | 90.36th | v5 (v2026.06.15) |
| Mar 30, 2025 | 10.94% (0.10935) | 92.76th | v4 (v2025.03.14) |
| Mar 29, 2025 | 12.48% (0.12482) | 89.84th | v4 (v2025.03.14) |
| Mar 17, 2025 | 10.94% (0.10935) | 92.87th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.06% (0.09063) | 94.62th | v3 (v2023.03.01) |
| Dec 12, 2024 | 6.57% (0.06568) | 94.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.38% (0.07383) | 93.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.52% (0.07525) | 92.75th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.52% (0.07525) | 92.03th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.52% (0.07525) | 80.97th | v2 (v2022.01.01) |
References (9)
- http://marc.info/?l=bugtraq&m=104342896818777&w=2 mailing-listx_refsource_BUGTRAQ
- http://secunia.com/advisories/7983 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.securityfocus.com/archive/1/309912/30/26090/threaded vendor-advisoryx_refsource_GENTOO
- http://www.securityfocus.com/archive/1/310212/30/26030/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/6679 vdb-entryx_refsource_BIDPatch
- https://access.redhat.com/security/cve/CVE-2003-1557 Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/11154 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2003-1557
- https://www.cve.org/CVERecord?id=CVE-2003-1557
| Link | Providers | Tags |
|---|---|---|
| http://marc.info/?l=bugtraq&m=104342896818777&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://secunia.com/advisories/7983 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.securityfocus.com/archive/1/309912/30/26090/threaded | vendor-advisoryx_refsource_GENTOO | |
| http://www.securityfocus.com/archive/1/310212/30/26030/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/6679 | vdb-entryx_refsource_BIDPatch | |
| https://access.redhat.com/security/cve/CVE-2003-1557 | Vendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/11154 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2003-1557 | ||
| https://www.cve.org/CVERecord?id=CVE-2003-1557 |
Change history (0)
No recorded changes yet.