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NVD / CVE Program· CNA redhat

CVE-2025-4432: Ring: some aes functions may panic when overflow checking is enabled in ring

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 63.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: github.com/briansmith/ring ring 0.17.12; azl3 kata-containers 3.15.0.aks0-1 on Azure Linux 3.0 CBL-Mariner Releases; azl3 kata-containers-cc 3.15.0.aks0-1 on Azure Linux 3.0 CBL-Mariner Releases.

Low priority for now. Upgrade to github.com/briansmith/ring ring 0.17.12; azl3 kata-containers 3.15.0.aks0-1 on Azure Linux 3.0 CBL-Mariner Releases; azl3 kata-containers-cc 3.15.0.aks0-1 on Azure Linux 3.0 CBL-Mariner Releases or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A flaw was found in Rust's Ring package. A panic may be triggered when overflow checking is enabled. In the QUIC protocol, this flaw allows an attacker to induce this panic by sending a specially crafted packet. It will likely occur unintentionally in 1 out of every 2**32 packets sent or received.

MediumCVSS 5.3 · v3.1—No exploit Fix available
Published
May 9, 2025
Updated
Nov 5, 2026
EPSS
1.0% · 63th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
5.3
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • github.com/briansmith/ring ring

    • before 0.17.12affected · semver

  • Red Hat Red Hat Enterprise Linux 10

    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat OpenShift Container Platform 4

    • all versionsaffected

  • Red Hat Red Hat Satellite 6

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Trusted Artifact Signer

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Trusted Profile Analyzer

    • all versionsaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
crates.ioringfrom 0.0.0-0 · before 0.17.120.17.12
crates.ioringbefore 0.17.120.17.12
Debian:12rust-ringfrom 0—
Debian:13rust-ringbefore 0.17.14-10.17.14-1
Gogithub.com/briansmith/ringfrom 0—
openSUSE:Tumbleweedgovulncheck-vulndbbefore 0.0.20250515T200012-1.10.0.20250515T200012-1.1

Same product

red hat: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-10230Samba: command injection in wins server hook script
    52Plan
  • CVE-2026-4631Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
    44Plan
  • CVE-2026-76578Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-4373May 6, 2025 · Glib: buffer underflow on glib through glib/gstring.c via function g_string_insert_unichar
    19Monitor
  • ← EarlierCVE-2025-4382May 9, 2025 · Grub2: grub allow access to encrypted device through cli once root device is unlocked via tpm
    23Monitor
  • Later →CVE-2025-3931May 14, 2025 · Yggdrasil: local privilege escalation in yggdrasil
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
github.com/briansmith/ring ring0.17.12Vendor (CNA)
azl3 kata-containers 3.15.0.aks0-1 on Azure Linux 3.0CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kata-containers-cc 3.15.0.aks0-1 on Azure Linux 3.0CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 trident 0.28.0-1 on Azure Linux 3.00.28.0-1Microsoft (MSRC)
crates.io:ring0.17.12Package registry (OSV)
debian:rust-ring0.17.14-1 · Debian:13Package registry (OSV)
opensuse:govulncheck-vulndb0.0.20250515T200012-1.1 · openSUSE:TumbleweedPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-3204936 days apartLibsoup: denial of service attack to websocket server
    30Monitor
  • CVE-2026-15711431 days apartLibsoup: soupwebsocketconnection: libsoup: websocket remote denial of service via oversized control frame protocol violation
    30Monitor
  • CVE-2026-18649454 days apartGstreamer1-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay rtp depayloaders
    30Monitor
  • CVE-2026-91149497 days apartCockpit: cockpit: denial of service via unbounded connection thread spawning
    30Monitor
  • CVE-2026-85231525 days apartLibtirpc: libtirpc: denial of service via unbounded memory allocation during rpcsec_gss decoding
    26Monitor
  • CVE-2025-12748186 days apartLibvirt: denial of service in xml parsing
    22Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
Low

Weakness class (CWE)

CWE-770 · Allocation of Resources Without Limits or Throttling

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records