The STARTTLS implementation in Kerio Connect 7.1.4 build 2985 and MailServer 6.x does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411
Published Mar 22, 2011
6.8
MEDIUMCVSS 2.0
EPSS 2.47%
Description
The STARTTLS implementation in Kerio Connect 7.1.4 build 2985 and MailServer 6.x does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411. NOTE: some of these details are obtained from third party information.
Affected products
No data.
Configuration 2
- 5.0
- 5.1
- 5.1.1
- 5.6.3
- 5.6.4
- 5.6.5
- 5.7.0
- 5.7.1
- 5.7.2
- 5.7.3
- 5.7.4
- 5.7.5
- 5.7.6
- 5.7.7
- 5.7.8
- 5.7.9
- 5.7.10
- 6.0
- 6.0.0
- 6.0.1
- 6.0.2
- 6.0.3
- 6.0.4
- 6.0.5
- 6.0.6
- 6.0.7
- 6.0.8
- 6.0.9
- 6.0.10
- 6.1.1
- 6.1.2
- 6.1.3
- 6.1.3_patch_1
- 6.1.4
- 6.2.0
- 6.2.1
- 6.2.2
- 6.3.0
- 6.3.1
- 6.3.1_p1
- 6.3.1_p2
- 6.4.0
- 6.4.1
- 6.4.2
- 6.5.0
- 6.5.0
- 6.5.1
- 6.5.2
- 6.6.0
- 6.6.0
- 6.6.1
- 6.6.2
- 6.7.0
- 6.7.1
- 6.7.2
- 6.7.3
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: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 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.47% (0.02471) | 83.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.47% (0.02471) | 82.38th | v5 (v2026.06.15) |
| Mar 30, 2025 | 4.99% (0.04986) | 88.70th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.43% (0.03434) | 78.94th | v4 (v2025.03.14) |
| Mar 19, 2025 | 4.99% (0.04986) | 88.41th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.41% (0.03408) | 86.60th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00202) | 59.13th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.20% (0.00202) | 58.43th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00202) | 56.40th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.56% (0.02564) | 82.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.56% (0.02564) | 80.25th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.56% (0.02564) | 61.75th | v2 (v2022.01.01) |
References (6)
- http://secunia.com/advisories/43678 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.kb.cert.org/vuls/id/555316 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.kb.cert.org/vuls/id/MAPG-8D9M4P x_refsource_CONFIRMUS Government Resource
- http://www.securityfocus.com/bid/46767 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2011/0610 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65932 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/43678 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.kb.cert.org/vuls/id/555316 | third-party-advisoryx_refsource_CERT-VNUS Government Resource | |
| http://www.kb.cert.org/vuls/id/MAPG-8D9M4P | x_refsource_CONFIRMUS Government Resource | |
| http://www.securityfocus.com/bid/46767 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2011/0610 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/65932 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.