CVE-2026-38998

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

Score 6.5 from GitHub Security Advisory published 2026-09-09. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A use-after-free in the SocketDescriptor::tcpReadHandler1 function (liveMedia/RTPInterface.cpp) of LIVE555 Streaming Media (version 2026.02.26) allows attackers to cause a Denial of Service (DoS) via sending a series of crafted RTSP and HTTP requests to the server.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (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
0.4%
EPSS %ILE
36th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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

Exploitation none (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

September 9, 2026

Last Modified

September 14, 2026

Advisory Details (3)

Auto-updated Sep 14, 2026
Patch available.
Web pageMentions a patch (unverified)

security-advisories/live555/live555-advisory-2026.md at master · archersec/security-advisories · GitHub

https://github.com/archersec/security-advisories/blob/master/live555/live555-advisory-2026.md
Web pageMentions a patch (unverified)
https://download.live555.com/changelog.txt
Web page

[Live-devel] Potential use-after-free vulnerabilities in LIVE555 (2026.02.26)

http://lists.live555.com/pipermail/live-devel/2026-March/022789.html

Vendor Advisories for CVE-2026-38998(1)

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

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
liblivemedia2004.11.11a-1 ... 2020.01.19-1 (102 versions)
  • every version up to 2026.09.23-dfsg-1: fixed in 2026.09.23-dfsg-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 81× 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.

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 91 is merged into the row it repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-10-12 16:10 UTCEG score recompute
  4. 2026-10-11 19:52 UTCEG score recompute
  5. 2026-10-11 17:06 UTCEG score recompute
  6. 2026-10-11 14:32 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-10-11 10:27 UTCEG score recompute
  9. 2026-10-11 10:27 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-10-10 01:19 UTCEG score recompute
  12. 2026-10-10 01:19 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-10-09 00:23 UTCEG score recompute
  15. 2026-10-09 00:23 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  16. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-10-07 14:45 UTCEG score recompute
  19. 2026-10-07 14:45 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  20. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-10-06 13:33 UTCEG score recompute
  22. 2026-10-06 13:33 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  23. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-10-05 12:38 UTCEG score recompute
  25. 2026-10-05 12:38 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
Show 65 more
  1. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-10-04 11:41 UTCEG score recompute
  3. 2026-10-04 11:41 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  4. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-10-03 10:45 UTCEG score recompute
  6. 2026-10-03 10:45 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  7. 2026-10-02 09:49 UTCEG score recompute
  8. 2026-10-02 09:49 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  9. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  10. 2026-10-01 08:53 UTCEG score recompute
  11. 2026-10-01 08:53 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  13. 2026-09-30 07:58 UTCEG score recompute
  14. 2026-09-30 07:58 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  15. 2026-09-29 07:02 UTCEG score recompute
  16. 2026-09-29 07:02 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  17. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  18. 2026-09-28 06:06 UTCEG score recompute
  19. 2026-09-28 06:06 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  20. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  21. 2026-09-27 05:11 UTCEG score recompute
  22. 2026-09-27 05:10 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  23. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-09-26 04:11 UTCEG score recompute
  25. 2026-09-26 04:11 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  26. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  27. 2026-09-25 03:11 UTCEG score recompute
  28. 2026-09-25 03:11 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  29. 2026-09-24 02:01 UTCEG score recompute
  30. 2026-09-24 02:01 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  31. 2026-09-23 01:06 UTCEG score recompute
  32. 2026-09-23 01:06 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  33. 2026-09-22 00:10 UTCEG score recompute
  34. 2026-09-22 00:10 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  35. 2026-09-20 23:14 UTCEG score recompute
  36. 2026-09-20 23:14 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  37. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  38. 2026-09-19 22:17 UTCEG score recompute
  39. 2026-09-19 22:17 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  40. 2026-09-18 21:20 UTCEG score recompute
  41. 2026-09-18 21:20 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  42. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  43. 2026-09-17 20:16 UTCEG score recompute
  44. 2026-09-17 20:16 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  45. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  46. 2026-09-16 15:35 UTCEG score recompute
  47. 2026-09-16 15:35 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  48. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  49. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  50. 2026-09-15 14:38 UTCEG score recompute
  51. 2026-09-15 14:38 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc · GitHub CVSS 6.5
  52. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  53. 2026-09-14 13:37 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc
  54. 2026-09-14 12:25 UTCEG score recomputeFirst assessed: 6.5 MEDIUM
  55. 2026-09-14 12:25 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc
  56. 2026-09-14 12:24 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  57. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  58. 2026-09-12 15:58 UTCEG score recompute
  59. 2026-09-12 15:58 UTCGHSA enrichmentGHSA-f8rc-m549-vxmc
  60. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  61. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  62. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  63. 2026-09-09 20:29 UTCNVD update
  64. 2026-09-09 19:21 UTCEG score recompute
  65. 2026-09-09 19:20 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-38998?
CVE-2026-38998 is a medium-severity vulnerability; its CVE record was published on September 9, 2026. A use-after-free in the SocketDescriptor::tcpReadHandler1 function (liveMedia/RTPInterface.cpp) of LIVE555 Streaming Media (version 2026.02.26) allows attackers to cause a Denial of Service (DoS) via sending a series of crafted RTSP and HTTP requests to the server.
When was the CVE record for CVE-2026-38998 published?
The CVE record for CVE-2026-38998 was published on September 9, 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 September 14, 2026; the record at its source may have been updated since.
Is CVE-2026-38998 actively exploited?
CVE-2026-38998 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-38998?
CVE-2026-38998 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-38998?
A fix for CVE-2026-38998 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-38998 are linked in the Vendor Advisories panel on this page.

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