CVE-2026-62298

UNRATEDCVSS · not yet scoredTrending — 5 sources updated this week

Also known asEUVD-2026-114330 (ENISA EUVD)Source: ENISA EUVD

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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS v2: —Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

mouse07410/asn1c is an ASN.1 compiler. Prior to 1.2.5, OPEN TYPE decoding can dereference an unallocated member pointer and crash the consuming program. OPEN_TYPE_aper_get in OPEN_TYPE_aper.c, OPEN_TYPE_ber_get in OPEN_TYPE_ber.c, OPEN_TYPE_oer_get in OPEN_TYPE_oer.c, and OPEN_TYPE_uper_get in OPEN_TYPE_uper.c share the pattern: a conditional null check on *memb_ptr2 resets presence only when the member exists, but execution then unconditionally computes an inner value from that pointer and a member offset. If the OPEN TYPE member has not been allocated, the null-pointer arithmetic and subsequent read cause a segmentation fault. The advisory demonstrates UPER and APER crashes for E2connectionUpdateAcknowledge, notes that E2AP uses APER, and provides a BER reproducer; OER is also explicitly identified as affected. This issue is fixed in version 1.2.5.

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 30, 2026

Last Modified

October 30, 2026

References (4)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 11× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-30 23:26 UTCNVD update
  6. 2026-10-30 22:24 UTCEG score recompute
  7. 2026-10-30 22:24 UTCMITRE cvelistV5
  8. 2026-10-30 20:02 UTCENISA EUVD ID recordedEUVD-2026-114330 · Source: ENISA EUVD
  9. 2026-10-30 19:26 UTCNVD update
  10. 2026-10-30 19:06 UTCEG score recompute
  11. 2026-10-30 19:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-62298?
CVE-2026-62298 is a vulnerability whose severity is not yet rated; its CVE record was published on October 30, 2026. mouse07410/asn1c is an ASN.1 compiler. Prior to 1.2.5, OPEN TYPE decoding can dereference an unallocated member pointer and crash the consuming program. OPEN_TYPE_aper_get in OPEN_TYPE_aper.c, OPEN_TYPE_ber_get in OPEN_TYPE_ber.c, OPEN_TYPE_oer_get in OPEN_TYPE_oer.c, and OPEN_TYPE_uper_get in…
When was the CVE record for CVE-2026-62298 published?
The CVE record for CVE-2026-62298 was published on October 30, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 30, 2026; the record at its source may have been updated since.
Is CVE-2026-62298 actively exploited?
CVE-2026-62298 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-62298?
The CVE record for CVE-2026-62298 names the fix: "This issue is fixed in version 1.2.5."

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