CVE-2025-5987

highEPSS 0.017 · 77 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.73% (77th) EPSS

CVSS 8.1 · high

Is it mine?

65 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-18

A flaw was found in libssh when using the ChaCha20 cipher with the OpenSSL library. If an attacker manages to exhaust the heap space, this error is not detected and may lead to libssh using a partially initialized cipher context. This occurs because the OpenSSL error code returned aliases with the SSH_OK code, resulting in libssh not properly detecting the error returned by the OpenSSL library. This issue can lead to undefined behavior, including compromised data confidentiality and integrity or crashes.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–8.1

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NVD / NIST USexploitability 2.2 · impact 5.9

v3.15mediumAV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 2.2 · impact 5.9

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-252USCWE-393US

affected products (65)

Products and version ranges known to be affected.

Dell Avamarall versionscert_bundDEcpe:/a:dell:avamar:-
Dell NetWorker Virtual Editionall versionscert_bundDEcpe:/a:dell:networker:virtual_edition
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
IBM FlashSystemall versionscert_bundDEcpe:/a:ibm:flashsystem:-
IBM Power Hardware Management Consoleall versionscert_bundDEcpe:/a:ibm:hardware_management_console:-
IBM SAN Volume Controllerall versionscert_bundDEcpe:/a:ibm:san_volume_controller:-
IBM Security Verify Accessall versionscert_bundDEcpe:/a:ibm:security_verify_access:-
IBM Storwizeall versionscert_bundDEcpe:/a:ibm:storwize:-
NetApp AFF Baseboard Management Controllerall versionscert_bundDEcpe:/h:netapp:aff:::baseboard_management_controller
NetApp ActiveIQ Unified Manager for VMware vSphereall versionscert_bundDEcpe:/a:netapp:active_iq_unified_manager:for_vmware_vsphere
NetApp FAS Baseboard Management Controllerall versionscert_bundDEcpe:/h:netapp:fas:baseboard_management_controller
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux 8all versionscert_bundDEcpe:/o:redhat:enterprise_linux:8
Red Hat Enterprise Linux 8.8all versionscert_bundDEcpe:/o:redhat:enterprise_linux:8.8
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Dell Secure Connect Gateway≤ Appliance <5.32.00.18cert_bundDE
IBM App Connect Enterprise< 12.0.16cert_bundDE

showing 20 of 65

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1423libssh: Mehrere SchwachstellenDeutsch2025-06-29csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in libssh ausnutzen, um einen Denial of Service Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und potentiell weitere nicht spezifizierte Auswirkungen zu verursachen.
WID-SEC-W-2026-0153Oracle Communications: Mehrere SchwachstellenDeutsch2026-01-20csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2025-07-07modified 2026-09-23

references (39)

External citations — patches, advisories, analysis.

scry

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