CVE-2026-78049

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.40% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 32.6% of scored records. A rank, not a probability.

NVD base score

The NVD has published no score for this record

NVD CVSS vector

No NVD score to derive

NVD analysis status

Not recorded

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-22 22:30Z12 DAYS AGO

Last updated

2026-08-27 14:38Z8 DAYS AGO

Reserved

2026-08-22

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

5ba9af9419c6db5f2d5be962f82adc4c255ea5678b335bfe4b9b528337bbdaa8

• vuldb.comVDB-394290 | Systerel S2OPC AddNodes Service sopc_node_mgt_helper_internal.c out-of-boundshttps://vuldb.com/vuln/394290vdb-entrytechnical-description
• vuldb.comVDB-394290 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/394290/ctisignaturepermissions-required
• vuldb.comCVE-2026-78049 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-78049third-party-advisory
• vuldb.comSubmit #881262 | Systerel S2OPC 1.7.3 Heap-based Out-of-Bounds Readhttps://vuldb.com/submit/881262third-party-advisory
• gitlab.comhttps://gitlab.com/systerel/S2OPC/-/work_items/1787related
• gitlab.comhttps://gitlab.com/systerel/S2OPC/-/merge_requests/1826patch
• github.comhttps://github.com/user-attachments/files/29702766/PoC.zipexploit
• gitlab.comhttps://gitlab.com/systerel/S2OPC/-/commit/aafbd37d381b618312ebdf5ddf57027f62c14fddpatch