CVE-2026-102758: Eclipse Foundation NetX Duo · Buffer Over-read
Affects Eclipse Foundation NetX DuoSource CVE Database V5
Not known to be exploited · CVSS 7.5 High.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Eclipse FoundationNetX Duo | Affected
| Fixed in– |
GitHubeclipse-threadx/netxduopkg:github/eclipse-threadx/netxduoOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a patch is available, users should monitor vendor communications for updates.
Description
CVE-2026-102758 is a buffer over-read vulnerability in the Eclipse Foundation NetX Duo library's function _nx_secure_x509_asn1_tlv_block_parse(). This function reads an ASN.1 tag byte from a buffer before verifying the buffer length, potentially reading one byte beyond the buffer when the remaining length is zero. The vulnerability affects X.509 certificate parsing during TLS handshakes. The issue can cause an out-of-bounds read but does not impact confidentiality or integrity, only availability. The affected versions are from 0 up to and including 6.5.1.202602.