CVE-2026-112008

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

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.6% of scored records. A rank, not a probability.

NVD base score

6.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-19.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2026-10-18 11:38Z10 DAYS AGO

Last updated

2026-10-19 19:04Z9 DAYS AGO

Reserved

2026-10-18

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

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

Weaknesses

• CWE-131Incorrect Calculation of Buffer SizeBase
• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

f02a5094e4e506782ccc32df1f67834d5f168d011442f5cabaaf158bb9e67396

• hackmd.iohttps://hackmd.io/@haindpwn/libmng-ordr-chunk-store-oob-writetechnical-descriptionexploit
• sourceforge.nethttps://sourceforge.net/projects/libmng/files/libmng-devel/2.0.3/product
• sourceforge.nethttps://sourceforge.net/projects/libmng/product
• www.vulncheck.comVulnCheck Advisory: libmng through 2.0.3 Heap Buffer Overflow via ORDR Chunk Reader mng_read_ordrhttps://www.vulncheck.com/advisories/libmng-through-2.0.3-heap-buffer-overflow-via-ordr-chunk-reader-mng-read-ordrthird-party-advisory