CVE-2017-8851

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An issue was discovered on OnePlus One and X devices. Due to a lenient updater-script on the OnePlus One and X OTA images, the fact that both products use the same OTA verification keys, and the fact that both products share the same 'ro.build.product' system property, attackers can install OTAs of one product over the other, even on locked bootloaders. That could theoretically allow for exploitation of vulnerabilities patched on one image but not on the other, in addition to expansion of the attack surface. Moreover, the vulnerability may result in having the device unusable until a Factory Reset is performed. This vulnerability can be exploited by Man-in-the-Middle (MiTM) attackers targeting the update process. This is possible because the update transaction does not occur over TLS (CVE-2016-10370). In addition, physical attackers can reboot the phone into recovery, and then use 'adb sideload' to push the OTA.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

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
Severity59% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

May 11, 2017

Last Modified

June 17, 2026

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 22× 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 147 total refreshes for this CVE.

  1. 2026-08-26 14:41 UTCEPSS rescore
  2. 2026-08-25 13:44 UTCEPSS rescore
  3. 2026-08-23 00:14 UTCEPSS rescore
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  1. 2026-07-23 01:31 UTCEG score recompute
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  3. 2026-07-22 14:04 UTCEPSS rescore
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  20. 2026-07-12 05:43 UTCEPSS rescore
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  22. 2026-07-09 19:06 UTCEPSS rescore
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  24. 2026-07-07 13:42 UTCEPSS rescore
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  44. 2026-06-23 21:30 UTCEPSS rescore
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  46. 2026-06-22 14:23 UTCEPSS rescore
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  48. 2026-06-21 14:54 UTCEPSS rescore
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  50. 2026-06-21 01:57 UTCEPSS rescore
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  52. 2026-06-19 19:23 UTCEPSS rescore
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  54. 2026-06-18 17:50 UTCEPSS rescore
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  71. 2026-06-06 13:45 UTCEPSS rescore
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  73. 2026-06-05 22:44 UTCEPSS rescore
  74. 2026-06-05 22:44 UTCEPSS rescore
  75. 2026-06-05 06:08 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2017-8851?
CVE-2017-8851 is a medium vulnerability published on May 11, 2017. An issue was discovered on OnePlus One and X devices. Due to a lenient updater-script on the OnePlus One and X OTA images, the fact that both products use the same OTA verification keys, and the fact that both products share the same 'ro.build.product' system property, attackers can install OTAs of…
When was CVE-2017-8851 disclosed?
CVE-2017-8851 was first published in the National Vulnerability Database on May 11, 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-2017-8851 actively exploited?
CVE-2017-8851 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 62.5% of all scored CVEs.
What is the CVSS score of CVE-2017-8851?
CVE-2017-8851 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2017-8851?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-8851, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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