CRLF injection vulnerability in Zend\Mail (Zend_Mail) in Zend Framework before 1.12.12, 2.x before 2.3.8, and 2.4.x before 2.4.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in the header of an email
Published Jan 27, 2020
6.1
MEDIUMCVSS 3.1
EPSS 1.01%
Description
CRLF injection vulnerability in Zend\Mail (Zend_Mail) in Zend Framework before 1.12.12, 2.x before 2.3.8, and 2.4.x before 2.4.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in the header of an email.
Affected products
-
- Version 2.4.x before 2.4.1StatusaffectedConstraints-
- Version 2.x before 2.3.8StatusaffectedConstraints-
- Version before 1.12.12StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zend Technologies | Zend Framework | n/a |
|
- < 1.12.12
- ≥ 2.3.0 · < 2.3.8
- ≥ 2.4.0 · < 2.4.1
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.01% (0.01009) | 61.76th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.01% (0.01009) | 58.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.30% (0.00296) | 50.86th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00197) | 58.60th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00197) | 55.82th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (7)
- http://framework.zend.com/security/advisory/ZF2015-04 x_refsource_CONFIRMExploitVendor Advisory
- https://framework.zend.com/security/advisory/ZF2015-04
- https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zend-http/CVE-2015-3154.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zendframework/CVE-2015-3154.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zendframework1/CVE-2015-3154.yaml
- https://github.com/advisories/GHSA-5957-5crx-79jx Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-3154
Change history (0)
No recorded changes yet.