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CVE-2015-5343

INDEX BUILT · 2026-09-20

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Integer overflow in util.c in mod_dav_svn in Apache Subversion 1.7.x, 1.8.x before 1.8.15, and 1.9.x before 1.9.3 allows remote authenticated users…

CVE-2015-53433 of 4 sources documented this
33

rank 33 = 8 + 19 + 1 + 5 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.30216  ·  without this subject the record ranks 25

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.6, from NVD  ·  without this subject the record ranks 14

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-05-13  ·  without this subject the record ranks 32

How much of the world it touches

NVD CPE configurations

4 products in the CPE ranges  ·  without this subject the record ranks 28

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 33

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1.21Mover the next 30 days, if this record is yours
Movement+$831,000on 2026-09-06, the last material move
Basisassumeda published average, not your estate

$1.21M = $4.99M incident cost x 0.8004932139359172 exposure x 0.30216 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

0.30216EPSSNOT IN KEVas of 2026-09-20
Severity7.6 HIGHreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementthreshold crossedreceipt
RISING10Risen from 0.03484 to 0.30216 across 20 observations. arc-rules@v1

Foresight · where to check next

Cloud SoftwarePulse ConnectCVE-2017-1000253Apple iOSMicrosoft WindowsCVE-2022-227065343

This record is one instance of CWE-119, improper restriction of operations within the bounds of a memory buffer. The index holds 14297 prior instances of this class, 57 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

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · low privileges required · no user interaction · low attack complexityreceipt
ImpactPartial confidentiality and integrity loss; complete availability lossreceipt
Scored fromCVSS v3.0 · NVD's vectorreceipt
Weakness classCWE-119 Improper Restriction of Operations within the Bounds of a Memory Bufferreceipt
Published consequencesCWE-119: Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands, Modify Memory; Availability, Confidentiality: Read Memory, DoS: Crash, Exit, or Restart, DoS: Resource…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

First unaffected version, by branchsubversion 1.8.15; subversion 1.9.3receipt
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, NVD7.6 HIGHreceipt
Exploit probability0.30216 · top 2% of all CVEsreceipt
Blast breadth2 products across 2 vendorsderived
Assigned byredhatreceipt
Recorded changes20 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesApache subversion; Debian linuxreceipt
Published rangesapache subversion >= 1.7.0 <= 1.7.20; apache subversion >= 1.8.0 < 1.8.15; apache subversion >= 1.9.0 < 1.9.3; debian linux 8.0receipt

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.

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What it is stated by the CNA

Integer overflow in util.c in mod_dav_svn in Apache Subversion 1.7.x, 1.8.x before 1.8.15, and 1.9.x before 1.9.3 allows remote authenticated users to cause a denial of service (subversion server crash or memory consumption) and possibly execute arbitrary code via a skel-encoded request body, which triggers an out-of-bounds read and heap-based buffer overflow. receipt

NVD's analysis a second authority

severity
7.6 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
weakness
CWE-119
affected versions
apache subversion >= 1.7.0 <= 1.7.20; apache subversion >= 1.8.0 < 1.8.15; apache subversion >= 1.9.0 < 1.9.3; and 1 more, listed in full below

check it yourself debian.org securitytracker.com slackware.com subversion.apache.org receipt

Dated events

2023-03-07EPSS moved 0.03 to 0.952026-09-06EPSS moved 0.09 to 0.30

Movement the material steps

4 Feb 20220.03484
7 Mar 20230.95494 · crossed 0.10 and 0.50 and 0.90 · scoring model v2023.03.01
17 Dec 20240.12896 · crossed 0.50 and 0.90
17 Mar 20250.1055 · scoring model v2025.03.14
25 Jul 20250.24978
15 Jun 20260.30216 · scoring model v2026.06.15
23 Aug 20260.09403 · crossed 0.10
30 Aug 20260.30216 · crossed 0.10
5 Sep 20260.09403 · crossed 0.10
6 Sep 20260.30216 · crossed 0.10

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 20 observations
4 Feb 20220.03484
7 Mar 20230.95494
7 Jun 20230.94964
12 Jun 20240.94290
17 Dec 20240.12896
17 Mar 20250.1055
29 Mar 20250.16775
30 Mar 20250.1055
25 Jul 20250.24978
1 Oct 20250.19092
27 Oct 20250.24978
28 Oct 20250.19092
27 Dec 20250.24978
28 Dec 20250.19092
13 May 20260.2393
15 Jun 20260.30216
23 Aug 20260.09403
30 Aug 20260.30216
5 Sep 20260.09403
6 Sep 20260.30216

20 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 0.30216Published2016-04-14Index as of2026-09-06

Exploit probability more than doubled between 2026-09-05 and 2026-09-06 (0.09403 → 0.30216) and the record had been public for 10 years, 4 months when this index was last written.

Published 2016-04-14 receipt · Index as of 2026-09-06 derived

The pattern, elsewhere

This record is one instance of CWE-119, improper restriction of operations within the bounds of a memory buffer. The index holds 14297 prior instances of this class, 57 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2023-6549 · Cloud Software Group NetScaler ADCmatches 6 of 8KEV listed · 2024receipt
CVE-2021-22894 · Pulse Connect Securematches 6 of 8KEV listed · 2021receipt
CVE-2017-1000253matches 5 of 8KEV listed · 2017receipt
CVE-2026-20700 · Apple iOS and iPadOSmatches 5 of 8KEV listed · 2026receipt
CVE-2023-36033 · Microsoft Windows 10 Version 1809matches 5 of 8KEV listed · 2023receipt
CVE-2022-22706matches 5 of 8KEV 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

14297 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.

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