CVE-2026-12805

MEDIUMPre-NVD 6.36.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-06-21. A secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this weekElevated

Also known asEUVD-2026-38191 (ENISA EUVD) · GHSA-35pp-gpq2-4898 (GitHub Security Advisories)Source: ENISA EUVD

6.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.3Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

A flaw has been found in OFFIS DCMTK up to 3.7.0. The affected element is the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. Executing a manipulation can lead to heap-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used. This patch is called 1d4b3815c0987840a983160bfc671fef63a3105b. It is best practice to apply a patch to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS v3
6.3
EG Score
6.3MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity63% × 45%
Impact severity (EG Severity): CVSS 6.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

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

The EG score (6.3): severity, escalated by confirmed exploitation. This CVE's 6.3 is its impact severity (EG Severity), not escalated.

EG Severity
6.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-25). 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
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA 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: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

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.

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

June 21, 2026

Last Modified

October 25, 2026

Advisory Details (3)

Auto-updated Jun 21, 2026
Patch available. Sources: github_commit.
Web page

Bug #1208: Heap Buffer Overflow in XMLNode::parseFile() - ofxml.cc - DCMTK - OFFIS DCMTK and DICOM Projects

https://support.dcmtk.org/redmine/issues/1208
GitHub commit Patch Available

commit 1d4b3815c098 (DCMTK/dcmtk)

Patch available: DCMTK/dcmtk latest (contains commit 1d4b3815c098)

https://github.com/DCMTK/dcmtk/commit/1d4b3815c0987840a983160bfc671fef63a3105b
Web page

git.dcmtk.org Git - dcmtk.git/commit

https://git.dcmtk.org/?p=dcmtk.git;a=commit;h=1d4b3815c0987840a983160bfc671fef63a3105b

Vendor Advisories for CVE-2026-12805(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
dcmtk3.6.5-1 ... 3.7.0-1 (63 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
dcmtk3.6.7-8, 3.6.7-9~deb12u1, 3.6.7-9~deb12u2, 3.6.7-9~deb12u3
  • every version up to 3.6.7-9~deb12u4: fixed in 3.6.7-9~deb12u4
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
dcmtk3.6.9-5, 3.6.9-5+deb13u1
  • every version up to 3.6.9-5+deb13u2: fixed in 3.6.9-5+deb13u2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
dcmtk3.6.9-5 ... 3.7.0-1 (10 versions)
  • every version up to 3.7.0+really3.7.0-6: fixed in 3.7.0+really3.7.0-6
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 41× 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.

Showing the most recent 100 of 214 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 114 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-25 23:36 UTCEG score recompute
  4. 2026-10-25 23:36 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  5. 2026-10-25 23:26 UTCNVD updateCVSS v4 → 2.1
  6. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  7. 2026-10-25 14:49 UTCEG score recompute
  8. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  10. 2026-10-23 06:59 UTCEG score recompute
  11. 2026-10-23 06:58 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  12. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  13. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  15. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  16. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  17. 2026-10-18 05:04 UTCEG score recompute
  18. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  19. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  21. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  23. 2026-10-12 16:36 UTCEG score recompute
  24. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  25. 2026-10-11 20:12 UTCEG score recompute
Show 75 more
  1. 2026-10-11 18:24 UTCEG score recompute
  2. 2026-10-11 14:57 UTCEG score recompute
  3. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  4. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  5. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  6. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  7. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  8. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  9. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  10. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-10-02 14:40 UTCOSV refresh
  13. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  14. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  16. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  17. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  18. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  19. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  22. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-09-13 12:52 UTCEG score recompute
  24. 2026-09-13 12:52 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  25. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  26. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  27. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  28. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  29. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  30. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  31. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  32. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  33. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  34. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  35. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  36. 2026-08-30 20:41 UTCEG score recompute
  37. 2026-08-30 20:41 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  38. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  39. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  40. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  41. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  42. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  43. 2026-08-24 22:15 UTCEG score recompute
  44. 2026-08-24 22:15 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  45. 2026-08-23 20:53 UTCEG score recompute
  46. 2026-08-23 20:53 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  47. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  48. 2026-08-22 22:54 UTCEG score recompute
  49. 2026-08-22 22:54 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  50. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  51. 2026-08-21 05:52 UTCEG score recompute
  52. 2026-08-21 05:52 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  53. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  54. 2026-08-20 07:53 UTCEG score recompute
  55. 2026-08-20 07:53 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  56. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  57. 2026-08-19 05:47 UTCEG score recompute
  58. 2026-08-19 05:47 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  59. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  60. 2026-08-16 20:18 UTCEG score recompute
  61. 2026-08-16 20:18 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  62. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  63. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  64. 2026-08-15 20:54 UTCEG score recompute
  65. 2026-08-15 20:54 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  66. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  67. 2026-08-14 21:51 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  68. 2026-08-13 23:53 UTCEG score recompute
  69. 2026-08-13 23:53 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  70. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  71. 2026-08-13 01:48 UTCEG score recompute
  72. 2026-08-13 01:48 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3
  73. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  74. 2026-08-12 03:50 UTCEG score recompute
  75. 2026-08-12 03:50 UTCGHSA enrichmentGHSA-35pp-gpq2-4898 · GitHub severity LOW · GitHub CVSS 6.3

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-12805?
CVE-2026-12805 is a medium-severity vulnerability; its CVE record was published on June 21, 2026. A flaw has been found in OFFIS DCMTK up to 3.7.0. The affected element is the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. Executing a manipulation can lead to heap-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.…
When was the CVE record for CVE-2026-12805 published?
The CVE record for CVE-2026-12805 was published on June 21, 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 25, 2026; the record at its source may have been updated since.
Is CVE-2026-12805 actively exploited?
CVE-2026-12805 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-12805?
CVE-2026-12805 has a CVSS base score of 6.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-12805?
A fix for CVE-2026-12805 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-12805 are linked in the Vendor Advisories panel on this page.

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