CVE-2017-7572

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.1%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka backintime) 1.1.18 and earlier uses a deprecated polkit authorization method (unix-process) that is subject to a race condition (time of check, time of use). With this authorization method, the owner of a process requesting a polkit operation is checked by polkitd via /proc//status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
41
EG Risk 41/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
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
1.1%
EPSS %ILE
64th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or 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 (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

April 6, 2017

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Sep 19, 2026
Patch available. Sources: github_commit.
github_commit Patch Available

commit 7f208dc547f5 (bit-team/backintime)

Patch available: bit-team/backintime v1.2.0 (contains commit 7f208dc547f5)

https://github.com/bit-team/backintime/commit/7f208dc547f569b689c888103e3b593a48cd1869

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
backintime—
  • every version up to 1.1.12-2: fixed in 1.1.12-2
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
backintime—
  • every version up to 1.1.12-2: fixed in 1.1.12-2
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
backintime—
  • every version up to 1.1.12-2: fixed in 1.1.12-2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
backintime—
  • every version up to 1.1.12-2: fixed in 1.1.12-2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 187 total refreshes for this CVE.

  1. 2026-10-05 17:39 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
  3. 2026-10-03 14:21 UTCEPSS rescore
  4. 2026-10-03 14:21 UTCEPSS rescore
  5. 2026-09-30 14:59 UTCEPSS rescore
  6. 2026-09-30 09:40 UTCEG score recompute
  7. 2026-09-28 13:45 UTCEPSS rescore
  8. 2026-09-27 13:40 UTCEPSS rescore
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  10. 2026-09-26 15:53 UTCEPSS rescore
  11. 2026-09-26 00:19 UTCEPSS rescore
  12. 2026-09-24 13:59 UTCEPSS rescore
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  14. 2026-09-21 20:27 UTCEPSS rescore
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  16. 2026-09-19 15:36 UTCEPSS rescore
  17. 2026-09-18 13:36 UTCOSV refresh
  18. 2026-09-17 19:22 UTCEPSS rescore
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  20. 2026-09-15 03:05 UTCEPSS rescore
  21. 2026-09-13 16:42 UTCEPSS rescore
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  24. 2026-09-07 15:56 UTCEPSS rescore
  25. 2026-09-05 15:24 UTCEPSS rescore
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  1. 2026-09-04 13:56 UTCEPSS rescore
  2. 2026-09-04 05:02 UTCEPSS rescore
  3. 2026-09-02 14:07 UTCEPSS rescore
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  5. 2026-09-01 03:31 UTCEPSS rescore
  6. 2026-08-30 19:13 UTCEPSS rescore
  7. 2026-08-30 14:51 UTCOSV refresh
  8. 2026-08-28 21:36 UTCEPSS rescore
  9. 2026-08-27 14:21 UTCEPSS rescore
  10. 2026-08-26 14:41 UTCEPSS rescore
  11. 2026-08-25 13:44 UTCEPSS rescore
  12. 2026-08-23 00:14 UTCEPSS rescore
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  14. 2026-08-19 16:59 UTCEPSS rescore
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  17. 2026-08-16 02:10 UTCEPSS rescore
  18. 2026-08-15 01:26 UTCEPSS rescore
  19. 2026-08-14 03:48 UTCOSV refresh
  20. 2026-08-12 13:46 UTCEPSS rescore
  21. 2026-08-09 13:42 UTCEPSS rescore
  22. 2026-08-08 16:32 UTCEPSS rescore
  23. 2026-08-07 16:22 UTCEPSS rescore
  24. 2026-08-06 13:42 UTCEPSS rescore
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  26. 2026-08-05 19:13 UTCEPSS rescore
  27. 2026-08-02 02:23 UTCEPSS rescore
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  29. 2026-08-01 04:12 UTCEPSS rescore
  30. 2026-07-30 16:24 UTCEPSS rescore
  31. 2026-07-30 01:26 UTCEPSS rescore
  32. 2026-07-29 08:33 UTCOSV refresh
  33. 2026-07-28 15:32 UTCEPSS rescore
  34. 2026-07-26 14:51 UTCEPSS rescore
  35. 2026-07-26 14:51 UTCEPSS rescore
  36. 2026-07-23 14:15 UTCEPSS rescore
  37. 2026-07-23 01:30 UTCEG score recompute
  38. 2026-07-22 22:10 UTCEG score recompute
  39. 2026-07-22 14:04 UTCEPSS rescore
  40. 2026-07-21 15:21 UTCEPSS rescore
  41. 2026-07-20 17:04 UTCEPSS rescore
  42. 2026-07-20 17:04 UTCEPSS rescore
  43. 2026-07-19 14:28 UTCEPSS rescore
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  45. 2026-07-19 02:26 UTCEPSS rescore
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  47. 2026-07-18 10:01 UTCEPSS rescore
  48. 2026-07-16 16:59 UTCEPSS rescore
  49. 2026-07-16 16:59 UTCEPSS rescore
  50. 2026-07-15 16:55 UTCEPSS rescore
  51. 2026-07-15 16:54 UTCEPSS rescore
  52. 2026-07-15 01:56 UTCEPSS rescore
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  54. 2026-07-13 22:26 UTCEPSS rescore
  55. 2026-07-13 22:26 UTCEPSS rescore
  56. 2026-07-12 05:43 UTCEPSS rescore
  57. 2026-07-12 00:52 UTCOSV refresh
  58. 2026-07-11 08:24 UTCEPSS rescore
  59. 2026-07-09 19:06 UTCEPSS rescore
  60. 2026-07-08 15:11 UTCEPSS rescore
  61. 2026-07-07 13:42 UTCEPSS rescore
  62. 2026-07-06 16:24 UTCEPSS rescore
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  67. 2026-07-04 06:28 UTCEPSS rescore
  68. 2026-07-04 06:28 UTCEPSS rescore
  69. 2026-07-02 16:54 UTCEPSS rescore
  70. 2026-07-01 15:03 UTCEPSS rescore
  71. 2026-06-30 23:19 UTCEPSS rescore
  72. 2026-06-30 23:19 UTCEPSS rescore
  73. 2026-06-29 14:03 UTCEPSS rescore
  74. 2026-06-28 14:04 UTCEPSS rescore
  75. 2026-06-28 04:53 UTCEPSS rescore

Related CVEs(same product + same CWE)

Same product

2 shown

Debian:11:backintime

Frequently asked(5)

What is CVE-2017-7572?
CVE-2017-7572 is a high vulnerability published on April 6, 2017. The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka backintime) 1.1.18 and earlier uses a deprecated polkit authorization method (unix-process) that is subject to a race condition (time of check, time of use). With this authorization method, the owner of a process requesting…
When was CVE-2017-7572 disclosed?
CVE-2017-7572 was first published on April 6, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-7572 actively exploited?
CVE-2017-7572 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.1% probability of exploitation in the next 30 days (64th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-7572?
CVE-2017-7572 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2017-7572?
A fix for CVE-2017-7572 is available: update to the fixed version the vendor names in its advisory.

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