CVE-2026-35215
published 2026-04-17CVE-2026-35215: Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the sdl_desc() function does not validate the…
PriorityP346high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.47%
36.9th percentile
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the sdl_desc() function does not validate the length of a decoded SDL descriptor from a slice packet. A zero-length descriptor is later used to calculate the number of slice items, causing a division by zero. An unauthenticated attacker can exploit this by sending a crafted slice packet to crash the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| firebirdsql | firebird | — | — |
| firebirdsql | firebird | — | — |
| firebirdsql | firebird | — | — |
| firebirdsql | firebird | >= 3.0.0 < 3.0.14 | 3.0.14 |
| firebirdsql | firebird | >= 4.0.0 < 4.0.7 | 4.0.7 |
| firebirdsql | firebird | >= 5.0.0 < 5.0.4 | 5.0.4 |
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Bugzilla
CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [epel-all]
bugzilla·2026-04-20·CVSS 7.5
CVE-2026-35215 [HIGH] CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [epel-all]
CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [epel-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-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [fedora-43]
bugzilla·2026-04-20·CVSS 7.5
CVE-2026-35215 [HIGH] CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [fedora-43]
CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [fedora-43]
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-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [fedora-all]
bugzilla·2026-04-20·CVSS 7.5
CVE-2026-35215 [HIGH] CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [fedora-all]
CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [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-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [fedora-42]
bugzilla·2026-04-20·CVSS 7.5
CVE-2026-35215 [HIGH] CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [fedora-42]
CVE-2026-35215 firebird: Firebird: Denial of Service via crafted slice packet causing division by zero [fedora-42]
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-2026-35215 Firebird: Firebird: Denial of Service via crafted slice packet causing division by zero
bugzilla·2026-04-17·CVSS 7.5
CVE-2026-35215 [HIGH] CVE-2026-35215 Firebird: Firebird: Denial of Service via crafted slice packet causing division by zero
CVE-2026-35215 Firebird: Firebird: Denial of Service via crafted slice packet causing division by zero
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the sdl_desc() function does not validate the length of a decoded SDL descriptor from a slice packet. A zero-length descriptor is later used to calculate the number of slice items, causing a division by zero. An unauthenticated attacker can exploit this by sending a crafted slice packet to crash the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
2026-04-17
Published