CRITICAL
Stack-based buffer overflow in the CPerlHost::Add method in win32/perlhost.h in Perl before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 on Windows allows attackers to execute arbitrary code via a long environment variable
Published Sep 27, 2017
9.8
CRITICALCVSS 3.0
EPSS 6.98%
Description
Stack-based buffer overflow in the CPerlHost::Add method in win32/perlhost.h in Perl before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 on Windows allows attackers to execute arbitrary code via a long environment variable.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.98% 0.06981
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06981
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (51 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.98% (0.06981) | 93.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.98% (0.06981) | 93.29th | v5 (v2026.06.15) |
| Mar 4, 2026 | 6.06% (0.06061) | 90.57th | v4 (v2025.03.14) |
| Mar 1, 2026 | 3.57% (0.03575) | 87.56th | v4 (v2025.03.14) |
| Feb 4, 2026 | 6.06% (0.06061) | 90.51th | v4 (v2025.03.14) |
| Feb 1, 2026 | 3.57% (0.03575) | 87.48th | v4 (v2025.03.14) |
| Jan 4, 2026 | 6.06% (0.06061) | 90.44th | v4 (v2025.03.14) |
| Jan 1, 2026 | 3.57% (0.03575) | 87.44th | v4 (v2025.03.14) |
| Dec 18, 2025 | 6.06% (0.06061) | 90.40th | v4 (v2025.03.14) |
| Dec 10, 2025 | 8.01% (0.08009) | 91.77th | v4 (v2025.03.14) |
| Dec 4, 2025 | 6.80% (0.06803) | 90.95th | v4 (v2025.03.14) |
| Dec 1, 2025 | 3.01% (0.03008) | 86.20th | v4 (v2025.03.14) |
| Nov 4, 2025 | 6.80% (0.06803) | 90.90th | v4 (v2025.03.14) |
| Nov 1, 2025 | 3.01% (0.03008) | 86.14th | v4 (v2025.03.14) |
| Oct 4, 2025 | 6.80% (0.06803) | 90.95th | v4 (v2025.03.14) |
| Oct 1, 2025 | 3.01% (0.03008) | 86.14th | v4 (v2025.03.14) |
| Sep 5, 2025 | 6.84% (0.06844) | 90.99th | v4 (v2025.03.14) |
| Sep 1, 2025 | 2.61% (0.02612) | 85.17th | v4 (v2025.03.14) |
| Aug 4, 2025 | 6.84% (0.06844) | 90.96th | v4 (v2025.03.14) |
| Aug 1, 2025 | 2.61% (0.02612) | 85.16th | v4 (v2025.03.14) |
| Jul 30, 2025 | 6.84% (0.06844) | 90.95th | v4 (v2025.03.14) |
| Jul 4, 2025 | 5.37% (0.05374) | 89.63th | v4 (v2025.03.14) |
| Jul 1, 2025 | 2.35% (0.02349) | 84.26th | v4 (v2025.03.14) |
| Jun 4, 2025 | 5.37% (0.05374) | 89.58th | v4 (v2025.03.14) |
| Jun 1, 2025 | 2.35% (0.02349) | 84.15th | v4 (v2025.03.14) |
| May 4, 2025 | 5.37% (0.05374) | 89.53th | v4 (v2025.03.14) |
| May 1, 2025 | 2.35% (0.02349) | 84.04th | v4 (v2025.03.14) |
| Apr 12, 2025 | 5.64% (0.05643) | 89.48th | v4 (v2025.03.14) |
| Apr 11, 2025 | 2.47% (0.02472) | 83.97th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.64% (0.05643) | 89.41th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.78% (0.07775) | 86.30th | v4 (v2025.03.14) |
| Mar 27, 2025 | 5.64% (0.05643) | 88.97th | v4 (v2025.03.14) |
| Mar 26, 2025 | 2.47% (0.02472) | 83.73th | v4 (v2025.03.14) |
| Mar 22, 2025 | 5.64% (0.05643) | 89.53th | v4 (v2025.03.14) |
| Mar 21, 2025 | 2.47% (0.02472) | 83.92th | v4 (v2025.03.14) |
| Mar 18, 2025 | 6.26% (0.06262) | 90.24th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.76% (0.02757) | 85.04th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.49% (0.01490) | 87.37th | v3 (v2023.03.01) |
| Sep 7, 2023 | 1.49% (0.01490) | 85.25th | v3 (v2023.03.01) |
| Aug 7, 2023 | 1.51% (0.01508) | 85.28th | v3 (v2023.03.01) |
| Apr 23, 2023 | 1.80% (0.01803) | 86.33th | v3 (v2023.03.01) |
| Mar 11, 2023 | 2.14% (0.02139) | 87.48th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.71% (0.02710) | 88.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.84% (0.02839) | 83.14th | v2 (v2022.01.01) |
| Jun 24, 2022 | 2.84% (0.02839) | 81.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.76% (0.02762) | 81.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.76% (0.02762) | 62.80th | v2 (v2022.01.01) |
| Feb 3, 2022 | 22.91% (0.22908) | 94.84th | v1 |
| Jan 6, 2022 | 22.91% (0.22908) | 94.77th | v1 |
| Sep 1, 2021 | 22.91% (0.22908) | 98.05th | v1 |
| Apr 14, 2021 | 22.91% (0.22908) | 0.00th | v1 |
Weaknesses (1)
References (6)
- http://www.securityfocus.com/bid/101051 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 x_refsource_CONFIRMRelease NotesVendor Advisory
- https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1 x_refsource_CONFIRMRelease NotesVendor Advisory
- https://rt.perl.org/Public/Bug/Display.html?id=131665 x_refsource_CONFIRMExploitPatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20180426-0001/ x_refsource_CONFIRM
- https://www.oracle.com/security-alerts/cpujul2020.html x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/101051 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 | x_refsource_CONFIRMRelease NotesVendor Advisory | |
| https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1 | x_refsource_CONFIRMRelease NotesVendor Advisory | |
| https://rt.perl.org/Public/Bug/Display.html?id=131665 | x_refsource_CONFIRMExploitPatchVendor Advisory | |
| https://security.netapp.com/advisory/ntap-20180426-0001/ | x_refsource_CONFIRM | |
| https://www.oracle.com/security-alerts/cpujul2020.html | x_refsource_MISC |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 27, 2017
Updated Aug 5, 2024
Reserved Aug 11, 2017
Link CVE-2017-12814
CISA Vulnrichment
Updated n/a