vciy

CVE-2017-9800

INDEX BUILT · 2026-09-20

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A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha3 to run…

CVE-2017-98004 of 4 sources documented this
42

rank 42 = 5 + 25 + 4 + 8 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.18892  ·  without this subject the record ranks 37

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 17

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-10-04  ·  without this subject the record ranks 38

How much of the world it touches

NVD CPE configurations

9 products in the CPE ranges  ·  without this subject the record ranks 34

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 42

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$943,000over the next 30 days, if this record is yours
Movement+$999,000on 2026-03-04, the last material move, 6 months before this reading
Basisassumeda published average, not your estate

$943,000 = $4.99M incident cost x 1 exposure x 0.18892 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

0.18892EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-06-15, 83 days at 0.19, as of 2026-09-06. arc-rules@v1

Foresight · where to check next

CVE-2022-47966CVE-2022-29499VMware vCenterApache Log4j2QNAP Systems Inc.Microsoft9800

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 Subversion? 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.

Watch this record

Matches your own product list against every record this index holds, and tells you when one of them moves.

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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 · no privileges required · no user interaction · low 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: 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, NVD9.8 CRITICALreceipt
Exploit probability0.18892 · top 3% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byapachereceipt
Recorded changes64 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productApache Software Foundation Apache Subversionreceipt
Published rangesapache subversion <= 1.8.18; apache subversion 1.9.0; apache subversion 1.9.1; apache subversion 1.9.2receipt
Show all 9 published ranges
apache subversion <= 1.8.18
apache subversion 1.9.0
apache subversion 1.9.1
apache subversion 1.9.2
apache subversion 1.9.3
apache subversion 1.9.4
apache subversion 1.9.5
apache subversion 1.9.6
apache subversion 1.10.0

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

A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha3 to run an arbitrary shell command. Such a URL could be generated by a malicious server, by a malicious user committing to a honest server (to attack another user of that server's repositories), or by a proxy server. The vulnerability affects all clients, including those that use file://, http://, and plain (untunneled) svn://. receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-20
affected versions
apache subversion <= 1.8.18; apache subversion 1.9.0; apache subversion 1.9.1; and 6 more, listed in full below

check it yourself lists.apache.org securityfocus.com securityfocus.com access.redhat.com securitytracker.com security.gentoo.org +7 morereceipt

Dated events

2023-03-07EPSS moved 0.05 to 0.492025-03-17EPSS moved 0.03 to 0.672026-06-15EPSS moved 0.67 to 0.19

Movement the material steps

14 Apr 20210.0819
7 Mar 20230.49495 · crossed 0.10 · scoring model v2023.03.01
27 Apr 20230.37396
8 Nov 20230.22139
17 Dec 20240.03981 · crossed 0.10
17 Mar 20250.67463 · crossed 0.10 and 0.50 · scoring model v2025.03.14
29 Mar 20250.3592 · crossed 0.50
30 Mar 20250.67463 · crossed 0.50
5 Apr 20250.33008 · crossed 0.50
6 Apr 20250.67463 · crossed 0.50
1 May 20250.33008 · crossed 0.50
4 May 20250.67463 · crossed 0.50
1 Jun 20250.33008 · crossed 0.50
4 Jun 20250.67463 · crossed 0.50
1 Jul 20250.32331 · crossed 0.50
4 Jul 20250.60506 · crossed 0.50
20 Jul 20250.49875 · crossed 0.50
30 Jul 20250.61853 · crossed 0.50
1 Aug 20250.3131 · crossed 0.50
4 Aug 20250.61853 · crossed 0.50
1 Sep 20250.28403 · crossed 0.50
5 Sep 20250.62365 · crossed 0.50
1 Oct 20250.30126 · crossed 0.50
4 Oct 20250.53578 · crossed 0.50
27 Oct 20250.65239
28 Oct 20250.49635 · crossed 0.50
1 Nov 20250.30126
4 Nov 20250.49635
18 Nov 20250.53841 · crossed 0.50
21 Nov 20250.49635 · crossed 0.50
1 Dec 20250.30126
4 Dec 20250.49635
18 Dec 20250.53578 · crossed 0.50
27 Dec 20250.65239
28 Dec 20250.53578
1 Jan 20260.30126 · crossed 0.50
4 Jan 20260.53578 · crossed 0.50
20 Jan 20260.49635 · crossed 0.50
23 Jan 20260.55222 · crossed 0.50
1 Feb 20260.37347 · crossed 0.50
4 Feb 20260.57377 · crossed 0.50
1 Mar 20260.37347 · crossed 0.50
4 Mar 20260.57377 · crossed 0.50
15 Jun 20260.18892 · crossed 0.50 · scoring model v2026.06.15
6 Sep 20260.18892

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

Show all 64 observations
14 Apr 20210.0819
4 Feb 20220.05242
7 Mar 20230.49495
31 Mar 20230.45625
27 Apr 20230.37396
8 May 20230.43487
27 May 20230.35884
8 Nov 20230.22139
15 Nov 20230.17115
5 Feb 20240.12851
17 Dec 20240.03981
21 Jan 20250.02848
17 Mar 20250.67463
29 Mar 20250.3592
30 Mar 20250.67463
5 Apr 20250.33008
6 Apr 20250.67463
1 May 20250.33008
4 May 20250.67463
1 Jun 20250.33008
4 Jun 20250.67463
19 Jun 20250.60506
1 Jul 20250.32331
4 Jul 20250.60506
13 Jul 20250.58437
20 Jul 20250.49875
30 Jul 20250.61853
1 Aug 20250.3131
4 Aug 20250.61853
1 Sep 20250.28403
4 Sep 20250.31853
5 Sep 20250.62365
17 Sep 20250.65717
24 Sep 20250.65239
1 Oct 20250.30126
4 Oct 20250.53578
27 Oct 20250.65239
28 Oct 20250.49635
1 Nov 20250.30126
4 Nov 20250.49635
18 Nov 20250.53841
21 Nov 20250.49635
1 Dec 20250.30126
4 Dec 20250.49635
18 Dec 20250.53578
27 Dec 20250.65239
28 Dec 20250.53578
1 Jan 20260.30126
4 Jan 20260.53578
20 Jan 20260.49635
23 Jan 20260.55222
30 Jan 20260.57377
1 Feb 20260.37347
4 Feb 20260.57377
1 Mar 20260.37347
4 Mar 20260.57377
15 Mar 20260.60289
23 Apr 20260.59073
29 May 20260.67275
15 Jun 20260.18892
23 Aug 20260.17798
30 Aug 20260.18892
5 Sep 20260.17798
6 Sep 20260.18892

64 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 0.18892Published2017-08-11Index as of2026-09-06

Exploit probability more than doubled between 2025-04-05 and 2025-04-06 (0.33008 → 0.67463) and the record had been public for 9 years when this index was last written.

Published 2017-08-11 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-2022-47966matches 8 of 8KEV listed · 2023receipt
CVE-2022-29499matches 8 of 8KEV listed · 2022receipt
CVE-2021-21985 · VMware vCenter Server and VMware Cloud…matches 8 of 9KEV listed · 2021receipt
CVE-2021-44228 · Apache Log4j2matches 8 of 9KEV listed · 2021receipt
CVE-2018-19949 · QNAP Systems Inc. QTSmatches 8 of 9KEV listed · 2020receipt
CVE-2019-0604 · Microsoft SharePoint Servermatches 8 of 9KEV listed · 2019receipt

"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 subversion

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

Family membership: held values

Nothing we hold separates this record from the others in its defect family. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

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What usually comes next

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