CVE-2026-5405
published 2026-05-01CVE-2026-5405: RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
PriorityP335high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
0.16%
5.7th percentile
RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| gitlab | wireshark | — | — |
| wireshark | wireshark | — | — |
| wireshark | wireshark | >= 4.4.0 < 4.4.15 | 4.4.15 |
| wireshark | wireshark | >= 4.6.0 < 4.6.5 | 4.6.5 |
| wireshark_foundation | wireshark | >= 4.4.0 < 4.4.15 | 4.4.15 |
| wireshark_foundation | wireshark | >= 4.6.0 < 4.6.5 | 4.6.5 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat7.8HIGH
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VulDB
Wireshark up to 4.4.14/4.6.4 RDP Protocol Dissector heap-based overflow (ID 21105 / Nessus ID 313009)
vuldb·2026-05-07·CVSS 7.8
CVE-2026-5405 [HIGH] Wireshark up to 4.4.14/4.6.4 RDP Protocol Dissector heap-based overflow (ID 21105 / Nessus ID 313009)
A vulnerability categorized as critical has been discovered in Wireshark up to 4.4.14/4.6.4. The affected element is an unknown function of the component RDP Protocol Dissector. Such manipulation leads to heap-based buffer overflow.
This vulnerability is referenced as CVE-2026-5405. It is possible to launch the attack remotely. No exploit is available.
It is advisable to upgrade the affected component.
GHSA
GHSA-6p69-v349-83rh: RDP protocol dissector crash in Wireshark 4
ghsa_unreviewed·2026-05-01
CVE-2026-5405 [HIGH] CWE-122 GHSA-6p69-v349-83rh: RDP protocol dissector crash in Wireshark 4
RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
GitLab
Heap-based Buffer Overflow in Wireshark
vendor_gitlab·2026-04-30·CVSS 7.8
CVE-2026-5405 [HIGH] CWE-122 Heap-based Buffer Overflow in Wireshark
Heap-based Buffer Overflow in Wireshark
RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
Affected products: Wireshark
Affected versions: >=4.6.0, =4.4.0, <4.4.15 (affected)
Solution: Upgrade to version 4.6.5 or above
Credit: Duc Anh Nguyen
Red Hat
wireshark: Heap-based Buffer Overflow in Wireshark
vendor_redhat·2026-04-30·CVSS 7.8
CVE-2026-5405 [HIGH] CWE-122 wireshark: Heap-based Buffer Overflow in Wireshark
wireshark: Heap-based Buffer Overflow in Wireshark
RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
A flaw was found in the RDP protocol dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing a heap-based buffer overflow, resulting in a denial of service or potentially in code execution.
Statement: This issue will cause a crash in Wireshark and potentially result in code execution. This flaw can only be exploited when a malformed pcap file is processed. Due to these reasons, this vulnerability has been rated with an important severity.
Mitigation: If the RDP protocol dissector is not being used, it can be disabled via the "Enabled Protocols" di
No detection rules found.
No public exploits indexed.
Hackernews
⚡ Weekly Recap: AI-Powered Phishing, Android Spying Tool, Linux Exploit, GitHub RCE & More
blogs_hackernews·2026-05-04·CVSS 9.3
CVE-2026-41940 [CRITICAL] ⚡ Weekly Recap: AI-Powered Phishing, Android Spying Tool, Linux Exploit, GitHub RCE & More
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## ⚡ Weekly Recap: AI-Powered Phishing, Android Spying Tool, Linux Exploit, GitHub RCE & More
This week, the shadows moved faster than the patches.
While most teams were still triaging last month’s alerts, attackers had already turned control panels into kill switches, kernels into open doors, and open-source pipelines into silent delivery systems.
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Bugzilla
CVE-2026-15041 389-ds-base: 389-ds-base: Non-constant-time comparison in PBKDF2-SHA256 password verification
bugzilla·2026-07-08·CVSS 9.8
CVE-2026-15041 [CRITICAL] CVE-2026-15041 389-ds-base: 389-ds-base: Non-constant-time comparison in PBKDF2-SHA256 password verification
CVE-2026-15041 389-ds-base: 389-ds-base: Non-constant-time comparison in PBKDF2-SHA256 password verification
A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function pbkdf2_sha256_pw_cmp() in ldap/servers/plugins/pwdstorage/pbkdf2_pwd.c uses standard memcmp() for hash comparison instead of the project's constant-time slapi_ct_memcmp(). Every other password storage scheme in the same plugin uses slapi_ct_memcmp(), which was introduced specifically to prevent timing side-channels (see CVE-2016-5405). This inconsistency allows a remote attacker with network access to the LDAP service to potentially infer partial hash information through repeated timing measurements of LDAP bind attempts. Practical exploitation is extremely difficult due to the PBKDF2 work fa
Bugzilla
CVE-2026-15041 389-ds-base: 389-ds-base: Non-constant-time comparison in PBKDF2-SHA256 password verification [fedora-all]
bugzilla·2026-07-08·CVSS 9.8
CVE-2026-15041 [CRITICAL] CVE-2026-15041 389-ds-base: 389-ds-base: Non-constant-time comparison in PBKDF2-SHA256 password verification [fedora-all]
CVE-2026-15041 389-ds-base: 389-ds-base: Non-constant-time comparison in PBKDF2-SHA256 password verification [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function pbkdf2_sha256_pw_cmp() in ldap/servers/plugins/pwdstorage/pbkdf2_pwd.c uses standard memcmp() for hash comparison instead of the project's constant-time slapi_ct_memcmp(). Every other password storage scheme in the same plugin uses slapi_ct_memcmp(), which was introduced specifically to prevent timing side-channels (see CVE-2016-5405). This inconsistency allo
Bugzilla
CVE-2026-5405 wireshark: Heap-based Buffer Overflow in Wireshark [fedora-all]
bugzilla·2026-05-04·CVSS 7.8
CVE-2026-5405 [HIGH] CVE-2026-5405 wireshark: Heap-based Buffer Overflow in Wireshark [fedora-all]
CVE-2026-5405 wireshark: Heap-based Buffer Overflow in Wireshark [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-5405 wireshark: Heap-based Buffer Overflow in Wireshark
bugzilla·2026-05-01·CVSS 7.8
CVE-2026-5405 [HIGH] CVE-2026-5405 wireshark: Heap-based Buffer Overflow in Wireshark
CVE-2026-5405 wireshark: Heap-based Buffer Overflow in Wireshark
RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
https://gitlab.com/wireshark/wireshark/-/issues/21105https://www.wireshark.org/security/wnpa-sec-2026-17.htmlhttps://access.redhat.com/errata/RHSA-2026:20600https://access.redhat.com/errata/RHSA-2026:26182https://access.redhat.com/security/cve/CVE-2026-5405https://bugzilla.redhat.com/show_bug.cgi?id=2464273https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5405.json
2026-05-01
Published