Skip to content
VulniPulse
Sign in
Highest advisory severityMedium 2 vendors · 2 advisories

CVE-2026-58216

Samba Vulnerability in NetApp Products

CVE-2026-58216: Samba Vulnerability in NetApp Products. Not in the CISA KEV catalog. Medium advisory severity (CVSS 5.3, NetApp).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

Get an email when NetApp publishes the next one.

VulniPulse checks NetApp's security advisories around the clock and emails you new ones with the severity, the fixed version and the vendor's link. First month free, then US$15/month; we email you before the first charge.

Start your free month

CVE-2026-58216 key facts

CISA KEV
Not listed (catalog checked )
Highest advisory severity
Medium
CVSS base score
5.3 (NetApp), 5.3 (Red Hat)
Vendor advisories
2 from NetApp, Red Hat
VulniPulse record
Published · Updated

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-58216; bulletin-wide values are not repeated here.

Is CVE-2026-58216 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-58216 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-58216?

  • Administrators who do not require the Kerberos password change service may disable it by setting ```kpasswd port = 0``` in ```/etc/samba/smb.conf```. Where disabling the service is not practical, rate-limiting access to the kpasswd service may reduce the likelihood of successful exploitation until an updated package can be applied. Note: Disabling kpasswd port will prevent domain users from changing their Kerberos passwords via the kpasswd protocol until patched. (Red Hat)

Vendor advisory comparison

NetApp

1 advisory
  • Advisory severityMedium5.3

    Medium [CVE-2026-58216] Samba Vulnerability in NetApp Products

    NTAP-20260821-0015Source published Source updated

    Samba versions 4.0 and higher are susceptible to a vulnerability which when successfully exploited could lead to decryption failure and an error message or a server process crash. Successful exploitation of this vulnerability could lead to Denial of Service (DoS). NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.

    Affected products in this advisory
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityMedium5.3

    Medium [CVE-2026-58216] kpasswd service: kpasswd packet that contains malformed ASN.1 might cause the server to access 6 bytes of unallocated memory leading server to crash

    CVE-2026-58216Source published Source updated

    An out-of-bounds read flaw was found in Samba's Kerberos Key Distribution Center's (KDC) password change (kpasswd) service. When processing malformed ASN.1-encoded Kerberos password change request, Samba server miscalculates the structure size and attempts to read up to six bytes beyond the end of the allocated buffer. While this out-of-bounds read typically results in a harmless decryption failure, if the read hits unmapped memory, it causes the KDC process to crash. An authenticated attacker can send a specially crafted kpasswd request containing malformed ASN.1 data to trigger the out-of-bounds read, which may cause the KDC process to terminate, resulting in a denial of service. Red Hat Product Security has rated this vulnerability as having a Moderate security impact. Successful…

    Affected products in this advisory
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    • Administrators who do not require the Kerberos password change service may disable it by setting ```kpasswd port = 0``` in ```/etc/samba/smb.conf```. Where disabling the service is not practical, rate-limiting access to the kpasswd service may reduce the likelihood of successful exploitation until an updated package can be applied. Note: Disabling kpasswd port will prevent domain users from changing their Kerberos passwords via the kpasswd protocol until patched.
    Full advisory and evidenceOpen source bulletin

More NetApp advisories

All NetApp advisories

Follow CVE-2026-58216 in the free weekly digest

Every Monday: whether it was added to CISA KEV, reported exploited, got a fix or changed severity, plus the week's critical and high advisories.

Free, no account. Confirm by email; unsubscribe in one click. Choose vendors and severity

Browse the latest tracked CVEs or the CVEs listed in CISA KEV.

Android app · Google Play

Get alerts for new CVEs on your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery
Get CVE alertsSee app features