Vulnerabilities (CVE)

Filtered by vendor Perl Subscribe
Filtered by product Perl
Total 54 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2024-56406 1 Perl 1 Perl 2026-06-17 N/A 8.4 HIGH
A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`.    $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;'    Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.
CVE-2023-47039 2 Microsoft, Perl 2 Windows, Perl 2026-06-17 N/A 7.8 HIGH
A vulnerability was found in Perl. This security issue occurs while Perl for Windows relies on the system path environment variable to find the shell (`cmd.exe`). When running an executable that uses the Windows Perl interpreter, Perl attempts to find and execute `cmd.exe` within the operating system. However, due to path search order issues, Perl initially looks for cmd.exe in the current working directory. This flaw allows an attacker with limited privileges to place`cmd.exe` in locations with weak permissions, such as `C:\ProgramData`. By doing so, arbitrary code can be executed when an administrator attempts to use this executable from these compromised locations.
CVE-2023-47038 3 Fedoraproject, Perl, Redhat 5 Fedora, Perl, Enterprise Linux and 2 more 2026-06-17 N/A 7.0 HIGH
A vulnerability was found in perl 5.30.0 through 5.38.0. This issue occurs when a crafted regular expression is compiled by perl, which can allow an attacker controlled byte buffer overflow in a heap allocated buffer.
CVE-2023-31486 2 Http\, Perl 2 \, Perl 2026-06-17 N/A 8.1 HIGH
HTTP::Tiny before 0.083, a Perl core module since 5.13.9 and available standalone on CPAN, has an insecure default TLS configuration where users must opt in to verify certificates.
CVE-2023-31484 2 Cpanpm Project, Perl 2 Cpanpm, Perl 2026-06-17 N/A 8.1 HIGH
CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS.
CVE-2022-48522 1 Perl 1 Perl 2026-06-17 N/A 9.8 CRITICAL
In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.
CVE-2021-36770 3 Fedoraproject, P5-encode Project, Perl 3 Fedora, P5-encode, Perl 2026-06-17 6.8 MEDIUM 7.8 HIGH
Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value.
CVE-2020-12723 5 Fedoraproject, Netapp, Opensuse and 2 more 16 Fedora, Oncommand Workflow Automation, Snap Creator Framework and 13 more 2026-06-17 5.0 MEDIUM 7.5 HIGH
regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.
CVE-2020-10878 5 Fedoraproject, Netapp, Opensuse and 2 more 17 Fedora, Oncommand Workflow Automation, Snap Creator Framework and 14 more 2026-06-17 7.5 HIGH 8.6 HIGH
Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.
CVE-2020-10543 4 Fedoraproject, Opensuse, Oracle and 1 more 15 Fedora, Leap, Communications Billing And Revenue Management and 12 more 2026-06-17 6.4 MEDIUM 8.2 HIGH
Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.
CVE-2018-6913 3 Canonical, Debian, Perl 3 Ubuntu Linux, Debian Linux, Perl 2026-06-17 7.5 HIGH 9.8 CRITICAL
Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count.
CVE-2018-6798 4 Canonical, Debian, Perl and 1 more 5 Ubuntu Linux, Debian Linux, Perl and 2 more 2026-06-17 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Perl 5.22 through 5.26. Matching a crafted locale dependent regular expression can cause a heap-based buffer over-read and potentially information disclosure.
CVE-2018-6797 4 Canonical, Debian, Perl and 1 more 5 Ubuntu Linux, Debian Linux, Perl and 2 more 2026-06-17 7.5 HIGH 9.8 CRITICAL
An issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written.
CVE-2018-18314 5 Canonical, Debian, Netapp and 2 more 8 Ubuntu Linux, Debian Linux, E-series Santricity Os Controller and 5 more 2026-06-17 7.5 HIGH 9.8 CRITICAL
Perl before 5.26.3 has a buffer overflow via a crafted regular expression that triggers invalid write operations.
CVE-2018-18313 6 Apple, Canonical, Debian and 3 more 9 Mac Os X, Ubuntu Linux, Debian Linux and 6 more 2026-06-17 6.4 MEDIUM 9.1 CRITICAL
Perl before 5.26.3 has a buffer over-read via a crafted regular expression that triggers disclosure of sensitive information from process memory.
CVE-2018-18312 5 Canonical, Debian, Netapp and 2 more 8 Ubuntu Linux, Debian Linux, E-series Santricity Os Controller and 5 more 2026-06-17 7.5 HIGH 9.8 CRITICAL
Perl before 5.26.3 and 5.28.0 before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.
CVE-2018-18311 8 Apple, Canonical, Debian and 5 more 18 Mac Os X, Ubuntu Linux, Debian Linux and 15 more 2026-06-17 7.5 HIGH 9.8 CRITICAL
Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.
CVE-2018-12015 6 Apple, Archive\, Canonical and 3 more 9 Mac Os X, \, Ubuntu Linux and 6 more 2026-06-17 6.4 MEDIUM 7.5 HIGH
In Perl through 5.26.2, the Archive::Tar module allows remote attackers to bypass a directory-traversal protection mechanism, and overwrite arbitrary files, via an archive file containing a symlink and a regular file with the same name.
CVE-2017-12883 1 Perl 1 Perl 2026-06-17 6.4 MEDIUM 9.1 CRITICAL
Buffer overflow in the S_grok_bslash_N function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\N{U+...}' escape.
CVE-2017-12837 1 Perl 1 Perl 2026-06-17 5.0 MEDIUM 7.5 HIGH
Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier.