CVE-2017-13038

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

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

Also known asEUVD-2017-4556 (ENISA EUVD) · GHSA-r4vg-8wx5-4736 (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
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).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4.5%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The PPP parser in tcpdump before 4.9.2 has a buffer over-read in print-ppp.c:handle_mlppp().

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
61
EG Risk 61/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation4.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
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 none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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
4.5%
EPSS %ILE
91st
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
4.5% 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: 3 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 none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 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 total (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 14, 2017

Last Modified

June 17, 2026

Advisory Details (6)

Auto-updated Oct 6, 2026
Patch available. Sources: redhat, github_commit.
Web page

[SECURITY] [DSA 3971-1] tcpdump security update

http://www.debian.org/security/2017/dsa-3971
Web page

About the security content of macOS High Sierra 10.13.1, Security Update 2017-001 Sierra, and Security Update 2017-004 El Capitan - Apple Support

https://support.apple.com/HT208221
Web page

Tcpdump: Multiple vulnerabilities (GLSA 201709-23) — Gentoo security

https://security.gentoo.org/glsa/201709-23
GitHub commit

commit 7335163a6ef8 (the-tcpdump-group/tcpdump)

Fix landed in the-tcpdump-group/tcpdump commit 7335163a6ef8 — awaiting tagged release

https://github.com/the-tcpdump-group/tcpdump/commit/7335163a6ef82d46ff18f3e6099a157747241629
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 7.

https://access.redhat.com/errata/RHEA-2018:0705

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntutcpdump (4.9.2-0ubuntu0.12.04.1) @ precise2026-11-02ubuntu
ubuntutcpdump (4.9.2-0ubuntu0.17.04.2) @ zesty2026-11-02ubuntu
redhattcpdump-14:4.9.2-3.el72018-04-10redhat

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

(7 across 7 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
tcpdump—
  • every version up to 4.9.2-1: fixed in 4.9.2-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
tcpdump—
  • every version up to 4.9.2-1: fixed in 4.9.2-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
tcpdump—
  • every version up to 4.9.2-1: fixed in 4.9.2-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
tcpdump—
  • every version up to 4.9.2-1: fixed in 4.9.2-1
—
Debian:7(1)
PackageVulnerable rangeFix by version rangeDependents
tcpdump4.3.0-1 ... 4.9.1-3 (30 versions)
  • every version up to 4.9.2-1~deb7u1: fixed in 4.9.2-1~deb7u1
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
tcpdump4.6.2-5 ... 4.9.2-1~deb7u1 (19 versions)
  • every version up to 4.9.2-1~deb8u1: fixed in 4.9.2-1~deb8u1
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
tcpdump4.9.0-2 ... 4.9.2-1~deb8u1 (7 versions)
  • every version up to 4.9.2-1~deb9u1: fixed in 4.9.2-1~deb9u1
—

Weakness Classification(1)

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

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 27× in last 7d / 93× 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 257 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 157 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 05:14 UTCEG score recompute
  2. 2026-11-02 05:14 UTCVendor advisory
  3. 2026-11-02 05:14 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-01 05:54 UTCEG score recompute
  5. 2026-11-01 05:54 UTCVendor advisory
  6. 2026-11-01 05:54 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-31 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  8. 2026-10-31 06:33 UTCEG score recompute
  9. 2026-10-31 06:33 UTCVendor advisory
  10. 2026-10-31 06:33 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-30 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  12. 2026-10-30 07:13 UTCEG score recompute
  13. 2026-10-30 07:13 UTCVendor advisory
  14. 2026-10-30 07:13 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-29 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  16. 2026-10-29 07:52 UTCEG score recompute
  17. 2026-10-29 07:52 UTCVendor advisory
  18. 2026-10-29 07:52 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-28 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  20. 2026-10-28 08:33 UTCEG score recompute
  21. 2026-10-28 08:33 UTCVendor advisory
  22. 2026-10-28 08:33 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-27 16:26 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  24. 2026-10-27 08:51 UTCEG score recompute
  25. 2026-10-27 08:51 UTCVendor advisory
Show 75 more
  1. 2026-10-27 08:50 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  2. 2026-10-26 16:26 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  3. 2026-10-26 07:55 UTCVendor advisory
  4. 2026-10-26 07:54 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-25 19:39 UTCEG score recompute
  6. 2026-10-25 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  7. 2026-10-25 08:34 UTCEG score recompute
  8. 2026-10-25 08:34 UTCVendor advisory
  9. 2026-10-25 08:34 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-24 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  11. 2026-10-24 09:13 UTCEG score recompute
  12. 2026-10-24 09:13 UTCVendor advisory
  13. 2026-10-24 09:12 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-23 16:26 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  15. 2026-10-23 09:50 UTCEG score recompute
  16. 2026-10-23 09:50 UTCVendor advisory
  17. 2026-10-23 09:50 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-22 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  19. 2026-10-22 10:27 UTCEG score recompute
  20. 2026-10-22 10:27 UTCVendor advisory
  21. 2026-10-22 10:27 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-21 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  23. 2026-10-21 11:06 UTCEG score recompute
  24. 2026-10-21 11:06 UTCVendor advisory
  25. 2026-10-21 11:05 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-10-20 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  27. 2026-10-20 11:45 UTCEG score recompute
  28. 2026-10-20 11:45 UTCVendor advisory
  29. 2026-10-20 11:44 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  30. 2026-10-19 16:26 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  31. 2026-10-19 12:22 UTCEG score recompute
  32. 2026-10-19 12:22 UTCVendor advisory
  33. 2026-10-19 12:22 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-18 16:26 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  35. 2026-10-18 10:37 UTCEG score recompute
  36. 2026-10-18 10:37 UTCVendor advisory
  37. 2026-10-18 10:37 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-10-17 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  39. 2026-10-17 11:16 UTCEG score recompute
  40. 2026-10-17 11:16 UTCVendor advisory
  41. 2026-10-17 11:16 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  42. 2026-10-16 16:29 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  43. 2026-10-16 11:54 UTCEG score recompute
  44. 2026-10-16 11:54 UTCVendor advisory
  45. 2026-10-16 11:54 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-10-15 16:26 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  47. 2026-10-15 12:32 UTCEG score recompute
  48. 2026-10-15 12:32 UTCVendor advisory
  49. 2026-10-15 12:31 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-10-14 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  51. 2026-10-14 07:55 UTCEG score recompute
  52. 2026-10-14 07:55 UTCVendor advisory
  53. 2026-10-14 07:55 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  54. 2026-10-13 16:27 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  55. 2026-10-13 03:08 UTCVendor advisory
  56. 2026-10-13 03:08 UTCGHSA enrichmentGHSA-r4vg-8wx5-4736 · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-10-12 20:35 UTCEG score recompute
  58. 2026-10-12 16:28 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  59. 2026-10-12 00:58 UTCEG score recompute
  60. 2026-10-11 13:40 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  61. 2026-10-10 19:55 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  62. 2026-10-09 20:02 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  63. 2026-10-08 16:35 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  64. 2026-10-07 23:41 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  65. 2026-10-06 15:11 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  66. 2026-10-05 17:38 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  67. 2026-10-04 13:48 UTCOSV refresh
  68. 2026-10-03 14:21 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  69. 2026-09-30 14:58 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  70. 2026-09-30 09:25 UTCEG score recompute
  71. 2026-09-28 13:45 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  72. 2026-09-27 13:40 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  73. 2026-09-26 15:53 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  74. 2026-09-24 13:59 UTCEPSS rescoreEPSS 4.5% · 91st percentile
  75. 2026-09-19 15:36 UTCEPSS rescoreEPSS 4.5% · 91st percentile

Frequently asked(5)

What is CVE-2017-13038?
CVE-2017-13038 is a critical-severity vulnerability; its CVE record was published on September 14, 2017. The PPP parser in tcpdump before 4.9.2 has a buffer over-read in print-ppp.c:handle_mlppp().
When was CVE-2017-13038 made public?
CVE-2017-13038 was made public on September 14, 2017: that is the date its CVE record's CNA, MITRE Corporation, gives for when the vulnerability was made public. The CVE record itself was published on September 14, 2017. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2017-13038 actively exploited?
CVE-2017-13038 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.5% probability of exploitation in the next 30 days (91st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-13038?
CVE-2017-13038 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-13038?
A fix for CVE-2017-13038 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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