CVE-2026-22259Disclosure(oisf / suricata)

LOWCVSS 7.5 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch oisf suricata systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain a patch. As a workaround, disable the DNP3 parser in the suricata yaml (disabled by default).

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-400CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

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

  • suricata

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
suricata

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-01-27: 2Patch / Workaround · 2026-01-27: 1Technical Details · 2026-01-27: 201-27
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-22259 Suricata DNP3 Parser Memory Exhaustion Vulnerability in Versions Prior to 8.0.3 and 7.0.14 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-22259

    Post summary

    The post announces a memory exhaustion vulnerability in Suricata's DNP3 parser affecting versions before 8.0.3 and 7.0.14.

    0000087
    4.0K followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-22259 Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory whi… https://www.cve.org/CVERecord?id=CVE-2026-22259

    Post summary

    CVE‑2026‑22259 causes a memory exhaustion DoS in Suricata via crafted traffic; the issue is resolved in versions 8.0.3 and 7.0.14.

    00000221
    56.5K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appoisfsuricata---

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