CVE-2019-17362

CRITICALNVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

Score 9.1 from GitHub Security Advisory (severity: MODERATE) published 2022-05-24. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekElevated

Also known asEUVD-2019-7770 (ENISA EUVD) · GHSA-x32c-6j92-4hp9 (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (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: 3.1%CVSS: 9.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
72
EG Risk 72/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
3.1%
EPSS %ILE
87th
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
3.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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 9, 2019

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Jul 19, 2026
Patch available. Sources: github_pr.
Web page

[SECURITY] Fedora 39 Update: perl-CryptX-0.080-1.fc39 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YU5OMCY3PX54YVI4FMNDEENHDJZJ3RJW/
Web page

[SECURITY] Fedora 38 Update: perl-CryptX-0.080-1.fc38 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/47YP5SXQ4RY6KMTK2HI5ZZR244XKRMCZ/
Web page

[SECURITY] [DLA 1951-1] libtomcrypt security update

https://lists.debian.org/debian-lts-announce/2019/10/msg00010.html
GitHub pull request

Fixes #507

Fix merged in libtom/libtomcrypt PR #508 on 2019-10-08 — awaiting tagged release

https://github.com/libtom/libtomcrypt/pull/508
Web page

CVE-2019-17362 - vulnerability in der_decode_utf8_string · Issue #507 · libtom/libtomcrypt · GitHub

https://github.com/libtom/libtomcrypt/issues/507

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibtomcrypt0 (1.17-7ubuntu0.1+esm1) @ xenial2026-11-02ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(11 across 11 ecosystems)
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
perl-cryptx—
  • every version up to 0.079-r0: fixed in 0.079-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt—
  • every version up to 1.18.2-3: fixed in 1.18.2-3
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt—
  • every version up to 1.18.2-3: fixed in 1.18.2-3
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt—
  • every version up to 1.18.2-3: fixed in 1.18.2-3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt—
  • every version up to 1.18.2-3: fixed in 1.18.2-3
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
libtomcrypt1.17-6
  • every version up to 1.17-6+deb8u1: fixed in 1.17-6+deb8u1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 27× in last 7d / 89× 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 99 of 243 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 144 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 06:31 UTCEG score recompute
  2. 2026-11-02 06:31 UTCVendor advisory
  3. 2026-11-02 06:30 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub severity MODERATE · GitHub CVSS 9.1
  4. 2026-11-01 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  5. 2026-11-01 06:38 UTCEG score recompute
  6. 2026-11-01 06:38 UTCVendor advisory
  7. 2026-11-01 06:38 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  8. 2026-10-31 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  9. 2026-10-31 06:46 UTCEG score recompute
  10. 2026-10-31 06:46 UTCVendor advisory
  11. 2026-10-31 06:46 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  12. 2026-10-30 16:29 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  13. 2026-10-30 06:53 UTCEG score recompute
  14. 2026-10-30 06:53 UTCVendor advisory
  15. 2026-10-30 06:53 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  16. 2026-10-29 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  17. 2026-10-29 07:01 UTCEG score recompute
  18. 2026-10-29 07:01 UTCVendor advisory
  19. 2026-10-29 07:01 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  20. 2026-10-28 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  21. 2026-10-28 07:09 UTCEG score recompute
  22. 2026-10-28 07:09 UTCVendor advisory
  23. 2026-10-28 07:09 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  24. 2026-10-27 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  25. 2026-10-27 07:15 UTCEG score recompute
Show 74 more
  1. 2026-10-27 07:15 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  2. 2026-10-26 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  3. 2026-10-26 04:17 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  4. 2026-10-25 19:03 UTCEG score recompute
  5. 2026-10-25 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  6. 2026-10-25 04:23 UTCEG score recompute
  7. 2026-10-25 04:23 UTCVendor advisory
  8. 2026-10-25 04:23 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  9. 2026-10-24 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  10. 2026-10-24 04:31 UTCEG score recompute
  11. 2026-10-24 04:31 UTCVendor advisory
  12. 2026-10-24 04:31 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  13. 2026-10-23 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  14. 2026-10-23 04:39 UTCEG score recompute
  15. 2026-10-23 04:39 UTCVendor advisory
  16. 2026-10-23 04:39 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  17. 2026-10-22 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  18. 2026-10-22 04:47 UTCEG score recompute
  19. 2026-10-22 04:47 UTCVendor advisory
  20. 2026-10-22 04:47 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  21. 2026-10-21 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  22. 2026-10-21 04:51 UTCEG score recompute
  23. 2026-10-21 04:51 UTCVendor advisory
  24. 2026-10-21 04:51 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  25. 2026-10-20 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  26. 2026-10-20 04:58 UTCEG score recompute
  27. 2026-10-20 04:58 UTCVendor advisory
  28. 2026-10-20 04:57 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  29. 2026-10-19 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  30. 2026-10-19 05:03 UTCEG score recompute
  31. 2026-10-19 05:03 UTCVendor advisory
  32. 2026-10-19 05:03 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  33. 2026-10-18 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  34. 2026-10-18 05:11 UTCEG score recompute
  35. 2026-10-18 05:11 UTCVendor advisory
  36. 2026-10-18 05:10 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  37. 2026-10-17 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  38. 2026-10-17 05:17 UTCEG score recompute
  39. 2026-10-17 05:17 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  40. 2026-10-16 16:31 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  41. 2026-10-16 05:24 UTCEG score recompute
  42. 2026-10-16 05:23 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  43. 2026-10-15 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  44. 2026-10-15 03:51 UTCEG score recompute
  45. 2026-10-15 03:51 UTCVendor advisory
  46. 2026-10-15 03:51 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  47. 2026-10-14 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  48. 2026-10-13 23:54 UTCEG score recompute
  49. 2026-10-13 23:54 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  50. 2026-10-13 16:27 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  51. 2026-10-12 20:01 UTCVendor advisory
  52. 2026-10-12 20:01 UTCGHSA enrichmentGHSA-x32c-6j92-4hp9 · GitHub CVSS 9.1
  53. 2026-10-12 19:59 UTCEG score recompute
  54. 2026-10-12 16:28 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  55. 2026-10-12 00:22 UTCEG score recompute
  56. 2026-10-11 13:42 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  57. 2026-10-10 19:55 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  58. 2026-10-09 20:03 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  59. 2026-10-08 16:37 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  60. 2026-10-07 23:43 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  61. 2026-10-06 15:12 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  62. 2026-10-05 17:39 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  63. 2026-10-04 23:18 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  64. 2026-10-03 14:22 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  65. 2026-09-30 14:59 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  66. 2026-09-30 10:14 UTCEG score recompute
  67. 2026-09-28 13:46 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  68. 2026-09-27 18:00 UTCOSV refresh
  69. 2026-09-27 13:40 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  70. 2026-09-26 15:54 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  71. 2026-09-26 00:20 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  72. 2026-09-24 13:59 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  73. 2026-09-23 13:43 UTCEPSS rescoreEPSS 3.1% · 87th percentile
  74. 2026-09-22 14:43 UTCEPSS rescoreEPSS 3.1% · 87th percentile

Frequently asked(5)

What is CVE-2019-17362?
CVE-2019-17362 is a critical-severity vulnerability; its CVE record was published on October 9, 2019. In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory…
When was the CVE record for CVE-2019-17362 published?
The CVE record for CVE-2019-17362 was published on October 9, 2019. 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 November 21, 2024; the record at its source may have been updated since.
Is CVE-2019-17362 actively exploited?
CVE-2019-17362 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.1% probability of exploitation in the next 30 days (87th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2019-17362?
CVE-2019-17362 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2019-17362?
A fix for CVE-2019-17362 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2019-17362 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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