VulnSocial

CVE-2026-34303Disclosure(oracle / mysql_server)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch oracle mysql_server systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-400

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • mysql_server

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-26); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
oracle
Products
mysql_server

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-26: 1Mentions · 2026-06-06: 1Patch / Workaround · 2026-06-06: 1Technical Details · 2026-04-26: 1Technical Details · 2026-06-06: 104-2606-06
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-261
Disclosure1
2026-06-061
Patch1
Full discourse2 posts
  • ThreatCluster@threatcluster
    Patch

    openSUSE and SUSE Linux Enterprise Server 15 SP6 issued MariaDB security fixes for CVE-2026-3494, CVE-2026-34303 and four other flaws rated critical on 5 June 2026, according to LinuxSecurity. https://threatcluster.io/cluster/critical-vulnerabilities-in-mariadb-affecting-opensuse-and-s-b8e6c1cf

    Post summary

    OpenSUSE and SUSE Linux Enterprise Server 15 SP6 released critical MariaDB patches for CVE‑2026‑3494, CVE‑2026‑34303 and four other critical flaws reported on 5 June 2026.

    00000114
    313 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-34303 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0… https://www.cve.org/CVERecord?id=CVE-2026-34303

    Post summary

    The text briefly announces CVE-2026‑34303, noting its impact on the Oracle MySQL Server optimizer component and listing affected version ranges, without providing exploit or mitigation details.

    00000124
    57.3K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apporaclemysql_server---

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