CVE-2026-62349

HIGHPre-NVD 8.38.3
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (45th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated
8.3EG
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: 0.6%CVSS: 8.3Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

TDengine is an open source, time-series database optimized for Internet of Things devices. In 3.4.1.6 and earlier, source/libs/parser/src/parUtil.c trimString() checks space for only one byte before processing SQL string escape sequences \%, \_, or \x, allowing a one-byte out-of-bounds write to the stack buffer tmpTokenBuf that can cause denial of service and potentially remote code execution. This issue is fixed in version 3.4.1.14.

CVSS v3
8.3
EG Score
8.3HIGHmedium confidence
EG Risk
53
EG Risk 53/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity83% × 45%
The EG Score, 8.3 of 10.
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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

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

The CVE record names the fixed release. 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

July 15, 2026

Last Modified

July 15, 2026

Advisory Details (1)

Auto-updated Jul 15, 2026
Fix named in the CVE record. Sources: github.
GitHub advisoryMentions a patch (unverified)

Off-by-One Buffer Overflow in TDengine · Advisory · taosdata/TDengine · GitHub

https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 31× 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 129 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 30 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  2. 2026-10-13 12:56 UTCEG score recompute
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
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  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 45th percentile
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  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 45th percentile
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  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  17. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  19. 2026-10-01 12:36 UTCEG score recompute
  20. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  22. 2026-09-28 08:43 UTCEG score recompute
  23. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 44th percentile
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  25. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.6% · 45th percentile
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  1. 2026-09-23 03:15 UTCEG score recompute
  2. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  3. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  4. 2026-09-18 04:44 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  6. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  7. 2026-09-13 23:11 UTCEG score recompute
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  9. 2026-09-11 21:45 UTCEG score recompute
  10. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  11. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  12. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  13. 2026-09-08 00:45 UTCEG score recompute
  14. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  15. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  16. 2026-09-05 20:48 UTCEG score recompute
  17. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  18. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  19. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  20. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.6% · 44th percentile
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  22. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.6% · 44th percentile
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  24. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  25. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  26. 2026-08-27 23:53 UTCEG score recompute
  27. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  28. 2026-08-26 23:15 UTCEG score recompute
  29. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  30. 2026-08-26 00:59 UTCEG score recompute
  31. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  32. 2026-08-24 14:58 UTCEG score recompute
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  34. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  35. 2026-08-22 07:35 UTCEG score recompute
  36. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
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  42. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
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  44. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  45. 2026-08-16 19:16 UTCEG score recompute
  46. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  47. 2026-08-16 08:11 UTCEG score recompute
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  49. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  50. 2026-08-14 00:50 UTCEG score recompute
  51. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  52. 2026-08-12 15:38 UTCEG score recompute
  53. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  54. 2026-08-11 17:26 UTCEG score recompute
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  56. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  57. 2026-08-09 21:07 UTCEG score recompute
  58. 2026-08-09 13:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
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  60. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
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  69. 2026-08-03 19:49 UTCEG score recompute
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  73. 2026-08-01 12:26 UTCEG score recompute
  74. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.4% · 32nd percentile

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Frequently asked(5)

What is CVE-2026-62349?
CVE-2026-62349 is a high-severity vulnerability; its CVE record was published on July 15, 2026. TDengine is an open source, time-series database optimized for Internet of Things devices. In 3.4.1.6 and earlier, source/libs/parser/src/parUtil.c trimString() checks space for only one byte before processing SQL string escape sequences \%, \_, or \x, allowing a one-byte out-of-bounds write to the…
When was the CVE record for CVE-2026-62349 published?
The CVE record for CVE-2026-62349 was published on July 15, 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 July 15, 2026; the record at its source may have been updated since.
Is CVE-2026-62349 actively exploited?
CVE-2026-62349 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62349?
CVE-2026-62349 has a CVSS base score of 8.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-62349?
The CVE record for CVE-2026-62349 names the fix: "This issue is fixed in version 3.4.1.14."

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