vciy

CVE-2018-5380

INDEX BUILT · 2026-09-20

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The Quagga BGP daemon (bgpd) prior to version 1.2.3 can overrun internal BGP code-to-string conversion tables used for debug by 1 pointer value…

CVE-2018-53804 of 4 sources documented this
22

rank 22 = 4 + 11 + 0 + 7 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.14836  ·  without this subject the record ranks 18

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 4.3, from NVD  ·  without this subject the record ranks 11

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 22

How much of the world it touches

NVD CPE configurations

8 products in the CPE ranges  ·  without this subject the record ranks 15

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 22

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$178,000over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$178,000 = $4.99M incident cost x 0.24048551839932833 exposure x 0.14836 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.14836EPSSNOT IN KEVas of 2026-09-20
Severity4.3 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 46 days at 0.15, as of 2026-07-31. arc-rules@v1

Foresight · where to check next

CVE-2016-4523CVE-2020-11899CVE-2014-0160LinuxApple macOSpolkit5380

This record is one instance of CWE-125, out-of-bounds read. The index holds 9767 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Running Quagga bgpd? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · low privileges required · no user interaction · low attack complexityreceipt
ImpactPartial availability lossreceipt
Scored fromCVSS v3.0 · the CNA's vectorreceipt
Weakness classCWE-125 Out-of-bounds Readreceipt
Published consequencesCWE-125: Confidentiality: Read Memory; Confidentiality: Bypass Protection Mechanism; Availability: DoS: Crash, Exit, or Restart; Other: Varies by Context[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed in1.2.3receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA4.3 MEDIUMreceipt
CVSS, NVD4.3 MEDIUMreceipt
Exploit probability0.14836 · top 3% of all CVEsreceipt
Blast breadth4 products across 4 vendorsderived
Assigned bycertccreceipt
Recorded changes17 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productQuagga bgpdreceipt
Published rangesquagga <= 1.2.2; debian linux 7.0; debian linux 8.0; debian linux 9.0receipt
Show all 8 published ranges
quagga <= 1.2.2
debian linux 7.0
debian linux 8.0
debian linux 9.0
canonical ubuntu linux 14.04
canonical ubuntu linux 16.04
canonical ubuntu linux 17.10
siemens ruggedcom rox ii firmware < 2.13.0
Fixed in1.2.3receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

Did this affect your environment?Answering needs an account.

What it is stated by the CNA

The Quagga BGP daemon (bgpd) prior to version 1.2.3 can overrun internal BGP code-to-string conversion tables used for debug by 1 pointer value, based on input. receipt

NVD's analysis a second authority

severity
4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
weakness
CWE-125
affected versions
quagga <= 1.2.2; debian linux 7.0; debian linux 8.0; and 5 more, listed in full below
also scored by
[email protected] 4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

check it yourself usn.ubuntu.com debian.org savannah.nongnu.org security.gentoo.org lists.debian.org gogs.quagga.net +2 morereceipt

Movement the material steps

14 Apr 20210.01865
7 Mar 20230.00836 · scoring model v2023.03.01
17 Mar 20250.01402 · scoring model v2025.03.14
15 Jun 20260.14998 · crossed 0.10 · scoring model v2026.06.15
31 Jul 20260.14836
Show all 17 observations
14 Apr 20210.01865
4 Feb 20220.01104
7 Mar 20230.00836
13 Jul 20230.00590
15 Sep 20230.00463
17 Dec 20240.03358
17 Mar 20250.01402
29 Mar 20250.02335
30 Mar 20250.01402
3 Nov 20250.01885
4 Nov 20250.00865
18 Nov 20250.02962
21 Nov 20250.00797
18 Dec 20250.00861
15 Jun 20260.14998
28 Jun 20260.15107
31 Jul 20260.14836

17 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.14836Published2018-02-19Index as of2026-07-31

The record had been public for 8 years, 5 months when this index was last written.

Published 2018-02-19 receipt · Index as of 2026-07-31 derived

The pattern, elsewhere

This record is one instance of CWE-125, out-of-bounds read. The index holds 9767 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2016-4523matches 6 of 8KEV listed · 2016receipt
CVE-2020-11899matches 5 of 8KEV listed · 2020receipt
CVE-2014-0160matches 5 of 8KEV listed · 2014receipt
CVE-2024-53150 · Linuxmatches 5 of 9KEV listed · 2024receipt
CVE-2022-22674 · Apple macOSmatches 5 of 9KEV listed · 2022receipt
CVE-2021-4034 · polkitmatches 4 of 9KEV listed · 2022receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

9767 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Browse the index from here

These are index-wide views, not findings about CVE-2018-5380.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.