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NVD / CVE Program· CNA GitHub_M

CVE-2025-64330: Suricata is vulnerable to a heap buffer overflow on verdict

Noroxi assessment

Priority: Monitor (action score 30/100)

  • 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: 0.39% (FIRST EPSS).
  • 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: suricata (Debian:13) 1:7.0.10-1+deb13u2; suricata (Debian:14) 1:8.0.2-1; suricata (openSUSE:Tumbleweed) 8.0.3-1.1.

Low priority for now. Upgrade to suricata (Debian:13) 1:7.0.10-1+deb13u2; suricata (Debian:14) 1:8.0.2-1; suricata (openSUSE:Tumbleweed) 8.0.3-1.1 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

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a single byte read heap overflow when logging the verdict in eve.alert and eve.drop records can lead to crashes. This requires the per packet alert queue to be filled with alerts and then followed by a pass rule. This issue has been patched in versions 7.0.13 and 8.0.2. To reduce the likelihood of this issue occurring, the alert queue size a should be increased (packet-alert-max in suricata.yaml) if verdict is enabled.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Nov 26, 2025
Updated
Oct 18, 2026
EPSS
0.3% · 33th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
7.5
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.

VendorProduct
oisfsuricata

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • oisf suricatabefore 7.0.13
  • oisf suricata8.0.0 and later · before 8.0.2

Versions reported by the vendor

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

  • OISF suricata

    • < 7.0.13, < 8.0.2affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:13suricatabefore 1:7.0.10-1+deb13u21:7.0.10-1+deb13u2
Debian:14suricatabefore 1:8.0.2-11:8.0.2-1
openSUSE:Tumbleweedsuricatabefore 8.0.3-1.18.0.3-1.1

Same product

oisf: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-10244Suricata version 4.0.4 incorrectly handles the parsing of an EtherNet/IP PDU.
    40Plan
  • CVE-2026-22262Suricata datasets: stack overflow when saving a set
    39Monitor
  • CVE-2023-35853In Suricata before 6.0.13, an adversary who controls an external source of Lua rules may be able to execute Lua code.
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-59149Oct 1, 2025 · Suricata: Stack buffer overflow in rule parser when processing long keywords with transforms
    24Monitor
  • ← EarlierCVE-2025-59150Oct 1, 2025 · Suricata: Keyword tls.subjectaltname can lead to NULL-ptr deref
    30Monitor
  • Later →CVE-2025-64331Nov 26, 2025 · Suricata is vulnerable to a stack overflow on large file transfers with http-body-printable
    30Monitor

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
debian:suricata1:7.0.10-1+deb13u2 · Debian:13Package registry (OSV)
opensuse:suricata8.0.3-1.1 · 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-2024-55627324 days apartSuricata segfault on StreamingBufferSlideToOffsetWithRegions
    30Monitor
  • CVE-2026-57226296 days apartSuricata swf: heap buffer overflow in SWF decompression depth handling
    23Monitor
  • CVE-2026-63451296 days apartSuricata detect: frame rules without content and with transform can cause heap buffer overflow during rule load
    22Monitor
  • CVE-2026-45761288 days apartSuricata detect: case-insensitive frame handling can cause heap buffer overflow during rule load
    13Monitor

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
high · 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
High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

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

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.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (1 more)

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

All records