vciy

CVE-2017-15715

INDEX BUILT · 2026-09-20

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In Apache httpd 2.4.0 to 2.4.29, the expression specified in <FilesMatch> could match '$' to a newline character in a malicious filename, rather than…

CVE-2017-157154 of 4 sources documented this
56

rank 56 = 28 + 20 + 0 + 8 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.85452  ·  without this subject the record ranks 28

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.1, from NVD  ·  without this subject the record ranks 36

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 56

How much of the world it touches

NVD CPE configurations

12 products in the CPE ranges  ·  without this subject the record ranks 48

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 56

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.26Mover the next 30 days, if this record is yours
Movement+$1.90Mon 2022-08-04, the last material move, 4 years, 1 month before this reading
Basisassumeda published average, not your estate

$4.26M = $4.99M incident cost x 1 exposure x 0.85452 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

0.85452EPSSNOT IN KEVas of 2026-09-20
Severity8.1 HIGHreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2024-12-17, 628 days at 0.85, as of 2026-09-06. arc-rules@v1

Foresight · where to check next

MicrosoftCVE-2022-47966CVE-2022-29499VMware vCenterApache Log4j2QNAP Systems Inc.15715

This record is one instance of CWE-20, improper input validation. The index holds 13347 prior instances of this class, 73 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 Apache HTTP Server? 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

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Reachnetwork-reachable · no privileges required · no user interaction · high attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.0 · NVD's vectorreceipt
Weakness classCWE-20 Improper Input Validationreceipt
Published consequencesCWE-20: Availability: DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory); Confidentiality: Read Memory, Read Files or Directories…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed inNo fix version in held sources, as the index stood on 6 Sep 2026.
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: Proof-of-concept published · 2 public repositories, 2019-06-21.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 2 public repositories2019-06-21receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD8.1 HIGHreceipt
Exploit probability0.85452 · top 0.29% of all CVEsreceipt
Blast breadth4 products across 4 vendorsderived
Assigned byapachereceipt
Recorded changes56 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Affected productApache Software Foundation Apache HTTP Serverreceipt
Published rangesapache http server >= 2.4.0 <= 2.4.29; debian linux 8.0; debian linux 9.0; canonical ubuntu linux 14.04receipt
Show all 12 published ranges
apache http server >= 2.4.0 <= 2.4.29
debian linux 8.0
debian linux 9.0
canonical ubuntu linux 14.04
canonical ubuntu linux 16.04
canonical ubuntu linux 17.10
canonical ubuntu linux 18.04
redhat enterprise linux 6.0
redhat enterprise linux 7.0
redhat enterprise linux 7.4
redhat enterprise linux 7.5
redhat enterprise linux 7.6

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

In Apache httpd 2.4.0 to 2.4.29, the expression specified in <FilesMatch> could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename. receipt

NVD's analysis a second authority

severity
8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-20
affected versions
apache http server >= 2.4.0 <= 2.4.29; debian linux 8.0; debian linux 9.0; and 9 more, listed in full below

check it yourself usn.ubuntu.com debian.org security.netapp.com access.redhat.com support.hpe.com access.redhat.com +14 morereceipt

Dated events

2022-02-04EPSS moved 0.15 to 0.082023-03-07EPSS moved 0.46 to 0.972026-09-06EPSS moved 0.76 to 0.85

Movement the material steps

14 Apr 20210.14266
4 Feb 20220.07767 · crossed 0.10
4 Aug 20220.4579 · crossed 0.10
7 Mar 20230.97081 · crossed 0.50 and 0.90 · scoring model v2023.03.01
17 Mar 20250.94216 · scoring model v2025.03.14
15 Jun 20260.86006 · crossed 0.90 · scoring model v2026.06.15
6 Sep 20260.85452
Show all 53 observations
14 Apr 20210.14266
3 Jun 20210.14737
8 Jun 20210.15204
4 Feb 20220.07767
4 Aug 20220.4579
7 Mar 20230.97081
20 Mar 20230.97073
13 May 20230.97068
5 Jul 20230.97016
8 Jul 20230.97100
17 Aug 20230.97053
26 Sep 20230.97023
10 Nov 20230.96631
13 Nov 20230.96443
10 Dec 20230.96163
18 May 20240.96093
26 Jun 20240.95912
16 Sep 20240.95493
17 Sep 20240.95912
19 Sep 20240.95493
17 Dec 20240.95355
17 Mar 20250.94216
18 Mar 20250.94235
20 Mar 20250.94185
25 Mar 20250.94207
27 Mar 20250.94244
28 Mar 20250.94207
29 Mar 20250.94278
30 Mar 20250.94207
14 Jun 20250.94166
18 Jun 20250.94207
24 Jun 20250.94166
30 Jul 20250.94173
15 Aug 20250.94151
30 Aug 20250.94104
1 Oct 20250.94095
2 Oct 20250.94166
10 Oct 20250.9415
27 Oct 20250.94158
28 Oct 20250.9415
11 Nov 20250.94103
27 Dec 20250.94112
28 Dec 20250.94103
4 Jan 20260.94023
18 Mar 20260.94103
27 Apr 20260.93618
15 Jun 20260.86006
2 Aug 20260.8572
23 Aug 20260.7636
30 Aug 20260.8572
4 Sep 20260.85452
5 Sep 20260.76231
6 Sep 20260.85452

53 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 0.85452Published2018-03-26Public PoC2019-06-21Index as of2026-09-06

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

Published 2018-03-26 receipt · Public PoC 2019-06-21 receipt · Index as of 2026-09-06 derived

The pattern, elsewhere

This record is one instance of CWE-20, improper input validation. The index holds 13347 prior instances of this class, 73 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2017-0148 · Microsoft Corporation Windows SMBmatches 8 of 9KEV listed · 2017receipt
CVE-2022-47966matches 7 of 8KEV listed · 2023receipt
CVE-2022-29499matches 7 of 8KEV listed · 2022receipt
CVE-2021-21985 · VMware vCenter Server and VMware Cloud…matches 7 of 9KEV listed · 2021receipt
CVE-2021-44228 · Apache Log4j2matches 7 of 9KEV listed · 2021receipt
CVE-2018-19949 · QNAP Systems Inc. QTSmatches 7 of 9KEV listed · 2020receipt

"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

13347 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

Its defect family

apache software foundation apache http server

Of the 5 records in this family that state one, this holds the highest EPSS percentile: 0.99711.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

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What usually comes next

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